Subtract 28/20 from 45/4
1st number: 11 1/4, 2nd number: 1 8/20
45/4 - 28/20 is 197/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
45/4 = 45 × 5/4 × 5 = 225/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
28/20 = 28 × 1/20 × 1 = 28/20 - Subtract the two like fractions:
225/20 - 28/20 = 225 - 28/20 = 197/20 - In mixed form: 917/20
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