Add 21/5 and 16/12
1st number: 4 1/5, 2nd number: 1 4/12
21/5 + 16/12 is 83/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
21/5 = 21 × 12/5 × 12 = 252/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
16/12 = 16 × 5/12 × 5 = 80/60 - Add the two like fractions:
252/60 + 80/60 = 252 + 80/60 = 332/60 - 332/60 simplified gives 83/15
- So, 21/5 + 16/12 = 83/15
In mixed form: 58/15
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