Subtract 7/25 from 18/70
18/70 - 7/25 is -4/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
18/70 = 18 × 5/70 × 5 = 90/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
7/25 = 7 × 14/25 × 14 = 98/350 - Subtract the two like fractions:
90/350 - 98/350 = 90 - 98/350 = -8/350 - After reducing the fraction, the answer is -4/175
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