Subtract 28/40 from 7/4
1st number: 1 3/4, 2nd number: 28/40
7/4 - 28/40 is 21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
7/4 = 7 × 10/4 × 10 = 70/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
28/40 = 28 × 1/40 × 1 = 28/40 - Subtract the two like fractions:
70/40 - 28/40 = 70 - 28/40 = 42/40 - After reducing the fraction, the answer is 21/20
- In mixed form: 11/20
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