Subtract 3/27 from 42/15
1st number: 2 12/15, 2nd number: 3/27
42/15 - 3/27 is 121/45.
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,
42/15 = 42 × 9/15 × 9 = 378/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
3/27 = 3 × 5/27 × 5 = 15/135 - Subtract the two like fractions:
378/135 - 15/135 = 378 - 15/135 = 363/135 - After reducing the fraction, the answer is 121/45
- In mixed form: 231/45
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