Subtract 9/81 from 50/42
1st number: 1 8/42, 2nd number: 9/81
50/42 - 9/81 is 68/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
50/42 = 50 × 27/42 × 27 = 1350/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
9/81 = 9 × 14/81 × 14 = 126/1134 - Subtract the two like fractions:
1350/1134 - 126/1134 = 1350 - 126/1134 = 1224/1134 - After reducing the fraction, the answer is 68/63
- In mixed form: 15/63
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