Subtract 50/7 from 90/98
1st number: 90/98, 2nd number: 7 1/7
90/98 - 50/7 is -305/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 7 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
90/98 = 90 × 1/98 × 1 = 90/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
50/7 = 50 × 14/7 × 14 = 700/98 - Subtract the two like fractions:
90/98 - 700/98 = 90 - 700/98 = -610/98 - After reducing the fraction, the answer is -305/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98-50/14 90/98-50/21 90/98-50/35 90/98-50/49