Subtract 18/45 from 28/10
1st number: 2 8/10, 2nd number: 18/45
28/10 - 18/45 is 12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
28/10 = 28 × 9/10 × 9 = 252/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Subtract the two like fractions:
252/90 - 36/90 = 252 - 36/90 = 216/90 - After reducing the fraction, the answer is 12/5
- In mixed form: 22/5
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