When you add the fraction operation you add as of It was a normal operation.
2/7 + 4/7 = 6/7
Subtracting with Fractions
When you subtract a fraction operation you subtract as If It were a normal subtraction operation like:
4/9 + 3/9 = 7/9
When you multiply a fraction operation you multiply as usual but with 2 different of wake denominator :
3/4 × 7/6 = 21/24
When you divide a fraction operation you divide using reciprocal And multiplying instead.