Subtract 28/30 from 15/36
15/36 - 28/30 is -31/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Likewise, for the 2nd fraction, since 30 × 6 = 180,
28/30 = 28 × 6/30 × 6 = 168/180 - Subtract the two like fractions:
75/180 - 168/180 = 75 - 168/180 = -93/180 - After reducing the fraction, the answer is -31/60
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