Subtract 7/70 from 50/40
1st number: 1 10/40, 2nd number: 7/70
50/40 - 7/70 is 23/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
50/40 = 50 × 7/40 × 7 = 350/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
7/70 = 7 × 4/70 × 4 = 28/280 - Subtract the two like fractions:
350/280 - 28/280 = 350 - 28/280 = 322/280 - After reducing the fraction, the answer is 23/20
- In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40-14/70 50/80-7/70 50/40-21/70 50/40-35/70 50/40-49/70