Add 21/5 and 20/60
1st number: 4 1/5, 2nd number: 20/60
21/5 + 20/60 is 68/15.
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,
20/60 = 20 × 1/60 × 1 = 20/60 - Add the two like fractions:
252/60 + 20/60 = 252 + 20/60 = 272/60 - 272/60 simplified gives 68/15
- So, 21/5 + 20/60 = 68/15
In mixed form: 48/15
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