Subtract 20/25 from 21/15
1st number: 1 6/15, 2nd number: 20/25
21/15 - 20/25 is 3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
21/15 = 21 × 5/15 × 5 = 105/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
20/25 = 20 × 3/25 × 3 = 60/75 - Subtract the two like fractions:
105/75 - 60/75 = 105 - 60/75 = 45/75 - After reducing the fraction, the answer is 3/5
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