Subtract 98/63 from 45/80
1st number: 45/80, 2nd number: 1 35/63
45/80 - 98/63 is -143/144.
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,
45/80 = 45 × 63/80 × 63 = 2835/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
98/63 = 98 × 80/63 × 80 = 7840/5040 - Subtract the two like fractions:
2835/5040 - 7840/5040 = 2835 - 7840/5040 = -5005/5040 - After reducing the fraction, the answer is -143/144
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