Subtract 9/84 from 70/8
1st number: 8 6/8, 2nd number: 9/84
70/8 - 9/84 is 121/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
70/8 = 70 × 21/8 × 21 = 1470/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
9/84 = 9 × 2/84 × 2 = 18/168 - Subtract the two like fractions:
1470/168 - 18/168 = 1470 - 18/168 = 1452/168 - After reducing the fraction, the answer is 121/14
- In mixed form: 89/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8-18/84 70/16-9/84 70/8-27/84 70/24-9/84 70/8-45/84 70/40-9/84 70/8-63/84 70/56-9/84