Subtract 42/70 from 21/25
21/25 - 42/70 is 6/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
21/25 = 21 × 14/25 × 14 = 294/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
42/70 = 42 × 5/70 × 5 = 210/350 - Subtract the two like fractions:
294/350 - 210/350 = 294 - 210/350 = 84/350 - After reducing the fraction, the answer is 6/25
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