Subtract 27/35 from 21/3
1st number: 7 0/3, 2nd number: 27/35
21/3 - 27/35 is 218/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 3 × 35 = 105,
21/3 = 21 × 35/3 × 35 = 735/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
27/35 = 27 × 3/35 × 3 = 81/105 - Subtract the two like fractions:
735/105 - 81/105 = 735 - 81/105 = 654/105 - After reducing the fraction, the answer is 218/35
- In mixed form: 68/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3-27/35 21/3-54/35 21/6-27/35 21/3-27/70 63/3-27/35 21/3-81/35 21/9-27/35 21/15-27/35