Subtract 30/20 from 7/72
1st number: 7/72, 2nd number: 1 10/20
7/72 - 30/20 is -101/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
30/20 = 30 × 18/20 × 18 = 540/360 - Subtract the two like fractions:
35/360 - 540/360 = 35 - 540/360 = -505/360 - After reducing the fraction, the answer is -101/72
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