Subtract 90/16 from 70/9
1st number: 7 7/9, 2nd number: 5 10/16
70/9 - 90/16 is 155/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
70/9 = 70 × 16/9 × 16 = 1120/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
90/16 = 90 × 9/16 × 9 = 810/144 - Subtract the two like fractions:
1120/144 - 810/144 = 1120 - 810/144 = 310/144 - After reducing the fraction, the answer is 155/72
- In mixed form: 211/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-90/16 70/9-90/32 70/27-90/16 70/9-90/48 70/45-90/16 70/9-90/80 70/63-90/16