Subtract 90/63 from 98/9
1st number: 10 8/9, 2nd number: 1 27/63
98/9 - 90/63 is 596/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
98/9 = 98 × 7/9 × 7 = 686/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
90/63 = 90 × 1/63 × 1 = 90/63 - Subtract the two like fractions:
686/63 - 90/63 = 686 - 90/63 = 596/63 - In mixed form: 929/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18-90/63 98/27-90/63 98/45-90/63 98/63-90/63