Subtract 16/20 from 70/9
1st number: 7 7/9, 2nd number: 16/20
70/9 - 16/20 is 314/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
70/9 = 70 × 20/9 × 20 = 1400/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
16/20 = 16 × 9/20 × 9 = 144/180 - Subtract the two like fractions:
1400/180 - 144/180 = 1400 - 144/180 = 1256/180 - After reducing the fraction, the answer is 314/45
- In mixed form: 644/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-32/20 70/18-16/20 70/9-16/40 70/9-48/20 70/27-16/20 70/9-16/60 70/9-80/20 70/45-16/20 70/63-16/20