Add 27/20 and 7/42, Solve 1 7/20 + 7/42 as a fraction

Add 27/20 and 7/42

1^st number: 1 7/20, 2^nd number: 7/42

27/20 + 7/42 is 91/60.

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,
27/20 = 27 × 21/20 × 21 = 567/420
Likewise, for the 2nd fraction, since 42 × 10 = 420,
7/42 = 7 × 10/42 × 10 = 70/420
Add the two like fractions:
567/420 + 70/420 = 567 + 70/420 = 637/420
637/420 simplified gives 91/60
So, 27/20 + 7/42 = 91/60
In mixed form: 131/60

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