Subtract 72/42 from 6/10
1st number: 6/10, 2nd number: 1 30/42
6/10 - 72/42 is -39/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
6/10 = 6 × 21/10 × 21 = 126/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Subtract the two like fractions:
126/210 - 360/210 = 126 - 360/210 = -234/210 - After reducing the fraction, the answer is -39/35
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