Subtract 28/15 from 7/72
1st number: 7/72, 2nd number: 1 13/15
7/72 - 28/15 is -637/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 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 15 × 24 = 360,
28/15 = 28 × 24/15 × 24 = 672/360 - Subtract the two like fractions:
35/360 - 672/360 = 35 - 672/360 = -637/360
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