Add 21/25 and 20/30
21/25 + 20/30 is 113/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
21/25 = 21 × 6/25 × 6 = 126/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
20/30 = 20 × 5/30 × 5 = 100/150 - Add the two like fractions:
126/150 + 100/150 = 126 + 100/150 = 226/150 - 226/150 simplified gives 113/75
- So, 21/25 + 20/30 = 113/75
In mixed form: 138/75
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