Subtract 45/42 from 81/10
1st number: 8 1/10, 2nd number: 1 3/42
81/10 - 45/42 is 246/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
81/10 = 81 × 21/10 × 21 = 1701/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
45/42 = 45 × 5/42 × 5 = 225/210 - Subtract the two like fractions:
1701/210 - 225/210 = 1701 - 225/210 = 1476/210 - After reducing the fraction, the answer is 246/35
- In mixed form: 71/35
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