Subtract 5/80 from 70/63
1st number: 1 7/63, 2nd number: 5/80
70/63 - 5/80 is 151/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
70/63 = 70 × 80/63 × 80 = 5600/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
5/80 = 5 × 63/80 × 63 = 315/5040 - Subtract the two like fractions:
5600/5040 - 315/5040 = 5600 - 315/5040 = 5285/5040 - After reducing the fraction, the answer is 151/144
- In mixed form: 17/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63-10/80 70/63-15/80 70/63-25/80 70/63-35/80