Subtract 25/21 from 70/84
1st number: 70/84, 2nd number: 1 4/21
70/84 - 25/21 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Subtract the two like fractions:
70/84 - 100/84 = 70 - 100/84 = -30/84 - After reducing the fraction, the answer is -5/14
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