Subtract 9/7 from 84/5
1st number: 16 4/5, 2nd number: 1 2/7
84/5 - 9/7 is 543/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
84/5 = 84 × 7/5 × 7 = 588/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
9/7 = 9 × 5/7 × 5 = 45/35 - Subtract the two like fractions:
588/35 - 45/35 = 588 - 45/35 = 543/35 - In mixed form: 1518/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-18/7 84/10-9/7 84/5-9/14 84/5-27/7 84/15-9/7 84/5-9/21 84/5-45/7 84/25-9/7 84/5-9/35 84/5-63/7 84/35-9/7 84/5-9/49