Add 60/4 and 1/21, Solve 15 0/4 + 1/21 as a fraction

Add 60/4 and 1/21

1^st number: 15 0/4, 2^nd number: 1/21

60/4 + 1/21 is 316/21.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 4 × 21 = 84,
60/4 = 60 × 21/4 × 21 = 1260/84
Likewise, for the 2nd fraction, since 21 × 4 = 84,
1/21 = 1 × 4/21 × 4 = 4/84
Add the two like fractions:
1260/84 + 4/84 = 1260 + 4/84 = 1264/84
1264/84 simplified gives 316/21
So, 60/4 + 1/21 = 316/21
In mixed form: 151/21

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