Answers

Subtract 50/63 from 98/90

1^st number: 1 8/90, 2^nd number: 50/63

98/90 - 50/63 is 31/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   98/90 = 98 × 7/90 × 7 = 686/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   50/63 = 50 × 10/63 × 10 = 500/630
4. Subtract the two like fractions:
   686/630 - 500/630 = 686 - 500/630 = 186/630
5. After reducing the fraction, the answer is 31/105

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

Subtract Fractions Calculator