Subtract 75/21 from 49/18
1st number: 2 13/18, 2nd number: 3 12/21
49/18 - 75/21 is -107/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
49/18 = 49 × 7/18 × 7 = 343/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
75/21 = 75 × 6/21 × 6 = 450/126 - Subtract the two like fractions:
343/126 - 450/126 = 343 - 450/126 = -107/126
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