Subtract 50/5 from 70/9
1st number: 7 7/9, 2nd number: 10 0/5
70/9 - 50/5 is -20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
70/9 = 70 × 5/9 × 5 = 350/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
50/5 = 50 × 9/5 × 9 = 450/45 - Subtract the two like fractions:
350/45 - 450/45 = 350 - 450/45 = -100/45 - After reducing the fraction, the answer is -20/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-50/5 70/9-50/10 70/27-50/5 70/9-50/15 70/45-50/5 70/9-50/25 70/63-50/5 70/9-50/35