Subtract 81/4 from 9/15
1st number: 9/15, 2nd number: 20 1/4
9/15 - 81/4 is -393/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
81/4 = 81 × 15/4 × 15 = 1215/60 - Subtract the two like fractions:
36/60 - 1215/60 = 36 - 1215/60 = -1179/60 - After reducing the fraction, the answer is -393/20
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