Add 42/12 and 81/60
1st number: 3 6/12, 2nd number: 1 21/60
42/12 + 81/60 is 97/20.
Steps for adding fractions
- 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,
42/12 = 42 × 5/12 × 5 = 210/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Add the two like fractions:
210/60 + 81/60 = 210 + 81/60 = 291/60 - 291/60 simplified gives 97/20
- So, 42/12 + 81/60 = 97/20
In mixed form: 417/20
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