Subtract 20/72 from 9/10
9/10 - 20/72 is 28/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
9/10 = 9 × 36/10 × 36 = 324/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Subtract the two like fractions:
324/360 - 100/360 = 324 - 100/360 = 224/360 - After reducing the fraction, the answer is 28/45
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