Subtract 72/7 from 18/25
1st number: 18/25, 2nd number: 10 2/7
18/25 - 72/7 is -1674/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
18/25 = 18 × 7/25 × 7 = 126/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
72/7 = 72 × 25/7 × 25 = 1800/175 - Subtract the two like fractions:
126/175 - 1800/175 = 126 - 1800/175 = -1674/175
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