Subtract 49/63 from 90/80
1st number: 1 10/80, 2nd number: 49/63
90/80 - 49/63 is 25/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
90/80 = 90 × 63/80 × 63 = 5670/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
49/63 = 49 × 80/63 × 80 = 3920/5040 - Subtract the two like fractions:
5670/5040 - 3920/5040 = 5670 - 3920/5040 = 1750/5040 - After reducing the fraction, the answer is 25/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80-98/63