Add 27/20 and 21/60
1st number: 1 7/20, 2nd number: 21/60
27/20 + 21/60 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Add the two like fractions:
81/60 + 21/60 = 81 + 21/60 = 102/60 - 102/60 simplified gives 17/10
- So, 27/20 + 21/60 = 17/10
In mixed form: 17/10
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