Add 21/12 and 5/60, Solve 1 9/12 + 5/60 as a fraction

Add 21/12 and 5/60

1^st number: 1 9/12, 2^nd number: 5/60

21/12 + 5/60 is 11/6.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 60 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60
Likewise, for the 2nd fraction, since 60 × 1 = 60,
5/60 = 5 × 1/60 × 1 = 5/60
Add the two like fractions:
105/60 + 5/60 = 105 + 5/60 = 110/60
110/60 simplified gives 11/6
So, 21/12 + 5/60 = 11/6
In mixed form: 15/6

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