Subtract 70/84 from 4/30
4/30 - 70/84 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
4/30 = 4 × 14/30 × 14 = 56/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Subtract the two like fractions:
56/420 - 350/420 = 56 - 350/420 = -294/420 - After reducing the fraction, the answer is -7/10
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