Subtract 90/50 from 72/98
1st number: 72/98, 2nd number: 1 40/50
72/98 - 90/50 is -261/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 50 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 98 × 25 = 2450,
72/98 = 72 × 25/98 × 25 = 1800/2450 - Likewise, for the 2nd fraction, since 50 × 49 = 2450,
90/50 = 90 × 49/50 × 49 = 4410/2450 - Subtract the two like fractions:
1800/2450 - 4410/2450 = 1800 - 4410/2450 = -2610/2450 - After reducing the fraction, the answer is -261/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: