Subtract 3/42 from 63/81
63/81 - 3/42 is 89/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 42 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 81 × 14 = 1134,
63/81 = 63 × 14/81 × 14 = 882/1134 - Likewise, for the 2nd fraction, since 42 × 27 = 1134,
3/42 = 3 × 27/42 × 27 = 81/1134 - Subtract the two like fractions:
882/1134 - 81/1134 = 882 - 81/1134 = 801/1134 - After reducing the fraction, the answer is 89/126
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