Subtract 72/30 from 1/7
1st number: 1/7, 2nd number: 2 12/30
1/7 - 72/30 is -79/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
1/7 = 1 × 30/7 × 30 = 30/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
72/30 = 72 × 7/30 × 7 = 504/210 - Subtract the two like fractions:
30/210 - 504/210 = 30 - 504/210 = -474/210 - After reducing the fraction, the answer is -79/35
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