Subtract 63/72 from 28/45
28/45 - 63/72 is -91/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
28/45 = 28 × 8/45 × 8 = 224/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
63/72 = 63 × 5/72 × 5 = 315/360 - Subtract the two like fractions:
224/360 - 315/360 = 224 - 315/360 = -91/360
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