Solutions by everydaycalculation.com

2042 + 1635 is 1415.

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

LCM of 42 and 35 is**210**

Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,

2042 = 20 × 542 × 5 = 100210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,

1635 = 16 × 635 × 6 = 96210 - Add the two like fractions:

100210 + 96210 = 100 + 96210 = 196210 - 196/210 simplified gives 1415
- So, 20/42 + 16/35 = 14/15

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