Subtract 63/5 from 70/42
1st number: 1 28/42, 2nd number: 12 3/5
70/42 - 63/5 is -164/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
63/5 = 63 × 42/5 × 42 = 2646/210 - Subtract the two like fractions:
350/210 - 2646/210 = 350 - 2646/210 = -2296/210 - After reducing the fraction, the answer is -164/15
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