Subtract 9/70 from 80/28
1st number: 2 24/28, 2nd number: 9/70
80/28 - 9/70 is 191/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
80/28 = 80 × 5/28 × 5 = 400/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Subtract the two like fractions:
400/140 - 18/140 = 400 - 18/140 = 382/140 - After reducing the fraction, the answer is 191/70
- In mixed form: 251/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-18/70 80/56-9/70 80/28-27/70 80/84-9/70 80/28-45/70 80/28-63/70