Add 21/84 and 60/54, Solve 21/84 + 1 6/54 as a fraction

Add 21/84 and 60/54

1^st number: 21/84, 2^nd number: 1 6/54

21/84 + 60/54 is 49/36.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 84 × 9 = 756,
21/84 = 21 × 9/84 × 9 = 189/756
Likewise, for the 2nd fraction, since 54 × 14 = 756,
60/54 = 60 × 14/54 × 14 = 840/756
Add the two like fractions:
189/756 + 840/756 = 189 + 840/756 = 1029/756
1029/756 simplified gives 49/36
So, 21/84 + 60/54 = 49/36
In mixed form: 113/36

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