Add 21/4 and 42/60
1st number: 5 1/4, 2nd number: 42/60
21/4 + 42/60 is 119/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
21/4 = 21 × 15/4 × 15 = 315/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
42/60 = 42 × 1/60 × 1 = 42/60 - Add the two like fractions:
315/60 + 42/60 = 315 + 42/60 = 357/60 - 357/60 simplified gives 119/20
- So, 21/4 + 42/60 = 119/20
In mixed form: 519/20
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