Subtract 81/28 from 42/10
1st number: 4 2/10, 2nd number: 2 25/28
42/10 - 81/28 is 183/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
42/10 = 42 × 14/10 × 14 = 588/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
81/28 = 81 × 5/28 × 5 = 405/140 - Subtract the two like fractions:
588/140 - 405/140 = 588 - 405/140 = 183/140 - In mixed form: 143/140
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