Add 27/21 and 60/63, Solve 1 6/21 + 60/63 as a fraction

Add 27/21 and 60/63

1^st number: 1 6/21, 2^nd number: 60/63

27/21 + 60/63 is 47/21.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 21 × 3 = 63,
27/21 = 27 × 3/21 × 3 = 81/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
60/63 = 60 × 1/63 × 1 = 60/63
Add the two like fractions:
81/63 + 60/63 = 81 + 60/63 = 141/63
141/63 simplified gives 47/21
So, 27/21 + 60/63 = 47/21
In mixed form: 25/21

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