Subtract 9/35 from 21/9
1st number: 2 3/9, 2nd number: 9/35
21/9 - 9/35 is 218/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 9 × 35 = 315,
21/9 = 21 × 35/9 × 35 = 735/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
9/35 = 9 × 9/35 × 9 = 81/315 - Subtract the two like fractions:
735/315 - 81/315 = 735 - 81/315 = 654/315 - After reducing the fraction, the answer is 218/105
- In mixed form: 28/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9-9/35 21/9-18/35 21/18-9/35 21/9-9/70 63/9-9/35 21/9-27/35 21/27-9/35 21/9-45/35 21/45-9/35 21/9-63/35 21/63-9/35