Subtract 4/72 from 28/18
1st number: 1 10/18, 2nd number: 4/72
28/18 - 4/72 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
28/18 = 28 × 4/18 × 4 = 112/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
4/72 = 4 × 1/72 × 1 = 4/72 - Subtract the two like fractions:
112/72 - 4/72 = 112 - 4/72 = 108/72 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
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