Subtract 21/90 from 70/14
1st number: 5 0/14, 2nd number: 21/90
70/14 - 21/90 is 143/30.
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,
70/14 = 70 × 45/14 × 45 = 3150/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Subtract the two like fractions:
3150/630 - 147/630 = 3150 - 147/630 = 3003/630 - After reducing the fraction, the answer is 143/30
- In mixed form: 423/30
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