Subtract 98/90 from 3/7
1st number: 3/7, 2nd number: 1 8/90
3/7 - 98/90 is -208/315.
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,
3/7 = 3 × 90/7 × 90 = 270/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
98/90 = 98 × 7/90 × 7 = 686/630 - Subtract the two like fractions:
270/630 - 686/630 = 270 - 686/630 = -416/630 - After reducing the fraction, the answer is -208/315
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