Subtract 3/15 from 54/63
54/63 - 3/15 is 23/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
54/63 = 54 × 5/63 × 5 = 270/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
3/15 = 3 × 21/15 × 21 = 63/315 - Subtract the two like fractions:
270/315 - 63/315 = 270 - 63/315 = 207/315 - After reducing the fraction, the answer is 23/35
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