Add 21/60 and 21/3
1st number: 21/60, 2nd number: 7 0/3
21/60 + 21/3 is 147/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
21/3 = 21 × 20/3 × 20 = 420/60 - Add the two like fractions:
21/60 + 420/60 = 21 + 420/60 = 441/60 - 441/60 simplified gives 147/20
- So, 21/60 + 21/3 = 147/20
In mixed form: 77/20
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