Add 35/20 and 20/42, Solve 1 15/20 + 20/42 as a fraction

Add 35/20 and 20/42

1^st number: 1 15/20, 2^nd number: 20/42

35/20 + 20/42 is 187/84.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 20 × 21 = 420,
35/20 = 35 × 21/20 × 21 = 735/420
Likewise, for the 2nd fraction, since 42 × 10 = 420,
20/42 = 20 × 10/42 × 10 = 200/420
Add the two like fractions:
735/420 + 200/420 = 735 + 200/420 = 935/420
935/420 simplified gives 187/84
So, 35/20 + 20/42 = 187/84
In mixed form: 219/84

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