Subtract 45/28 from 42/35
1st number: 1 7/35, 2nd number: 1 17/28
42/35 - 45/28 is -57/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
42/35 = 42 × 4/35 × 4 = 168/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
45/28 = 45 × 5/28 × 5 = 225/140 - Subtract the two like fractions:
168/140 - 225/140 = 168 - 225/140 = -57/140
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