Subtract 42/84 from 2/35
2/35 - 42/84 is -31/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
2/35 = 2 × 12/35 × 12 = 24/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Subtract the two like fractions:
24/420 - 210/420 = 24 - 210/420 = -186/420 - After reducing the fraction, the answer is -31/70
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