Subtract 35/30 from 21/15
1st number: 1 6/15, 2nd number: 1 5/30
21/15 - 35/30 is 7/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
35/30 = 35 × 1/30 × 1 = 35/30 - Subtract the two like fractions:
42/30 - 35/30 = 42 - 35/30 = 7/30
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