Subtract 21/90 from 98/21
1st number: 4 14/21, 2nd number: 21/90
98/21 - 21/90 is 133/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 21 × 30 = 630,
98/21 = 98 × 30/21 × 30 = 2940/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Subtract the two like fractions:
2940/630 - 147/630 = 2940 - 147/630 = 2793/630 - After reducing the fraction, the answer is 133/30
- In mixed form: 413/30
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