Add 7/60 and 54/21, Solve 7/60 + 2 12/21 as a fraction

Add 7/60 and 54/21

1^st number: 7/60, 2^nd number: 2 12/21

7/60 + 54/21 is 1129/420.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420
Likewise, for the 2nd fraction, since 21 × 20 = 420,
54/21 = 54 × 20/21 × 20 = 1080/420
Add the two like fractions:
49/420 + 1080/420 = 49 + 1080/420 = 1129/420
So, 7/60 + 54/21 = 1129/420
In mixed form: 2289/420

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