Subtract 21/90 from 28/14
1st number: 2 0/14, 2nd number: 21/90
28/14 - 21/90 is 53/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
28/14 = 28 × 45/14 × 45 = 1260/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Subtract the two like fractions:
1260/630 - 147/630 = 1260 - 147/630 = 1113/630 - After reducing the fraction, the answer is 53/30
- In mixed form: 123/30
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