Add 21/25 and 27/60
21/25 + 27/60 is 129/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 60 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
21/25 = 21 × 12/25 × 12 = 252/300 - Likewise, for the 2nd fraction, since 60 × 5 = 300,
27/60 = 27 × 5/60 × 5 = 135/300 - Add the two like fractions:
252/300 + 135/300 = 252 + 135/300 = 387/300 - 387/300 simplified gives 129/100
- So, 21/25 + 27/60 = 129/100
In mixed form: 129/100
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