Subtract 15/45 from 72/28
1st number: 2 16/28, 2nd number: 15/45
72/28 - 15/45 is 47/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
72/28 = 72 × 45/28 × 45 = 3240/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
15/45 = 15 × 28/45 × 28 = 420/1260 - Subtract the two like fractions:
3240/1260 - 420/1260 = 3240 - 420/1260 = 2820/1260 - After reducing the fraction, the answer is 47/21
- In mixed form: 25/21
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