Solutions by everydaycalculation.com

15 + 510 is 710.

- Find the least common denominator or LCM of the two denominators:

LCM of 5 and 10 is**10**

Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,

15 = 1 × 25 × 2 = 210 - Likewise, for the 2nd fraction, since 10 × 1 = 10,

510 = 5 × 110 × 1 = 510 - Add the two like fractions:

210 + 510 = 2 + 510 = 710 - So, 1/5 + 5/10 = 7/10

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