Solutions by everydaycalculation.com

57 + 210 is 3235.

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

LCM of 7 and 10 is**70**

Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,

57 = 5 × 107 × 10 = 5070 - Likewise, for the 2nd fraction, since 10 × 7 = 70,

210 = 2 × 710 × 7 = 1470 - Add the two like fractions:

5070 + 1470 = 50 + 1470 = 6470 - 64/70 simplified gives 3235
- So, 5/7 + 2/10 = 32/35

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