Add 21/5 and 21/60
1st number: 4 1/5, 2nd number: 21/60
21/5 + 21/60 is 91/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 60 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 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Add the two like fractions:
252/60 + 21/60 = 252 + 21/60 = 273/60 - 273/60 simplified gives 91/20
- So, 21/5 + 21/60 = 91/20
In mixed form: 411/20
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