Subtract 42/9 from 15/36
1st number: 15/36, 2nd number: 4 6/9
15/36 - 42/9 is -17/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
15/36 = 15 × 1/36 × 1 = 15/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
42/9 = 42 × 4/9 × 4 = 168/36 - Subtract the two like fractions:
15/36 - 168/36 = 15 - 168/36 = -153/36 - After reducing the fraction, the answer is -17/4
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