Subtract 9/21 from 36/8
1st number: 4 4/8, 2nd number: 9/21
36/8 - 9/21 is 57/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
36/8 = 36 × 21/8 × 21 = 756/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
9/21 = 9 × 8/21 × 8 = 72/168 - Subtract the two like fractions:
756/168 - 72/168 = 756 - 72/168 = 684/168 - After reducing the fraction, the answer is 57/14
- In mixed form: 41/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/8-9/21 36/8-18/21 36/16-9/21 36/8-9/42 36/8-27/21 36/24-9/21 36/8-9/63 36/8-45/21 36/40-9/21 36/8-63/21 36/56-9/21