Subtract 4/72 from 21/10
1st number: 2 1/10, 2nd number: 4/72
21/10 - 4/72 is 92/45.
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,
21/10 = 21 × 36/10 × 36 = 756/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Subtract the two like fractions:
756/360 - 20/360 = 756 - 20/360 = 736/360 - After reducing the fraction, the answer is 92/45
- In mixed form: 22/45
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