Subtract 20/7 from 75/4
1st number: 18 3/4, 2nd number: 2 6/7
75/4 - 20/7 is 445/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
75/4 = 75 × 7/4 × 7 = 525/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
20/7 = 20 × 4/7 × 4 = 80/28 - Subtract the two like fractions:
525/28 - 80/28 = 525 - 80/28 = 445/28 - In mixed form: 1525/28
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