Subtract 50/35 from 81/42
1st number: 1 39/42, 2nd number: 1 15/35
81/42 - 50/35 is 1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
81/42 = 81 × 5/42 × 5 = 405/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
50/35 = 50 × 6/35 × 6 = 300/210 - Subtract the two like fractions:
405/210 - 300/210 = 405 - 300/210 = 105/210 - After reducing the fraction, the answer is 1/2
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