Subtract 3/90 from 12/7
1st number: 1 5/7, 2nd number: 3/90
12/7 - 3/90 is 353/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
12/7 = 12 × 90/7 × 90 = 1080/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
3/90 = 3 × 7/90 × 7 = 21/630 - Subtract the two like fractions:
1080/630 - 21/630 = 1080 - 21/630 = 1059/630 - After reducing the fraction, the answer is 353/210
- In mixed form: 1143/210
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