## Addition of two fraction numbers

In this method, we simply multiply crosswise and add them to get numerator of the the answer and multiply bottom (denominators) of two fractions to get the bottom of answer (see example).

Example 1:

Multiply crosswise and add to get the numerator of the answer. Here 5×4=20 and 7×3=21. Then 20+21=41. The bottom of the fraction is just 3×4=12. So the answer is 41/12. Subtraction of two fraction numbers: Subtraction is same as that of addition; only the difference is that we have to subtract cross multiplication. In this method, we simply multiply crosswise and subtract them to get numerator of the answer and multiply bottom (denominators) of two fractions to get the bottom of the answer (see example).

## Subtraction of two fraction numbers

Example 1:

Multiply crosswise and subtract to get the numerator of the answer. Here 5×4=20 and 7×3=21. Then 20-21=-1. The bottom of the fraction is just 3×4=12. So the answer is -1/12.

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## 3 Comments

Hey, thank you for this method. The school where I'm from teaches it complicated where it takes a few steps and sometimes you have to really thing to find the least common multiple but this is too easy and I can do really small or really big fractions in my head.

ReplyDeleteHunter the true vedic mathematician will always look at the numbers first to determine the best approach. For example: consider the sum 9/16 + 3/8. You could do the crosswise method but it should be obvious that 3/8 scaled up is the same as 6/16 so now you just add 6+9 to get the answer 15/16. That is why factors are useful.

ReplyDeleteThank you Mancala ðŸ˜Š

ReplyDelete