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1/2 + 1/3 =

L.C.M of 2 and 3 is 6

so, 1×3/2×3 + 1×2/3×2 = 3+2/6 = 5/6

To multiply a fraction , just mutiply the numerator and denominator .

1/2 × 1/3 = 1/6

To divide 2 fractions , reverse 1 fraction and multiply it with the other.

1/2÷1/3 = 1/2×3/1 = 3/2

1/4 + 1/5 =

L.C.M of 4 and 5 is 20

so, 1/4 + 1/5 = 5 +4/20 = 9/20.

To multiply a fraction , just mutiply the numerator and denominator .

1/4 × 1/5 = 1/20

To divide 2 fractions , reverse 1 fraction and multiply it with the other.

1/4÷1/5 = 1/4 * 5/1 = 5/4