Subtract 63/8 from 42/54
1st number: 42/54, 2nd number: 7 7/8
42/54 - 63/8 is -511/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
42/54 = 42 × 4/54 × 4 = 168/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
63/8 = 63 × 27/8 × 27 = 1701/216 - Subtract the two like fractions:
168/216 - 1701/216 = 168 - 1701/216 = -1533/216 - After reducing the fraction, the answer is -511/72
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