Subtract 70/42 from 14/21
1st number: 14/21, 2nd number: 1 28/42
14/21 - 70/42 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
14/21 = 14 × 2/21 × 2 = 28/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
70/42 = 70 × 1/42 × 1 = 70/42 - Subtract the two like fractions:
28/42 - 70/42 = 28 - 70/42 = -42/42 - After reducing the fraction, the answer is -1/1
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