Subtract 45/14 from 21/4
1st number: 5 1/4, 2nd number: 3 3/14
21/4 - 45/14 is 57/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
21/4 = 21 × 7/4 × 7 = 147/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
45/14 = 45 × 2/14 × 2 = 90/28 - Subtract the two like fractions:
147/28 - 90/28 = 147 - 90/28 = 57/28 - In mixed form: 21/28
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