Subtract 75/27 from 21/15
1st number: 1 6/15, 2nd number: 2 21/27
21/15 - 75/27 is -62/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
21/15 = 21 × 9/15 × 9 = 189/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
75/27 = 75 × 5/27 × 5 = 375/135 - Subtract the two like fractions:
189/135 - 375/135 = 189 - 375/135 = -186/135 - After reducing the fraction, the answer is -62/45
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