Subtract 20/35 from 27/15
1st number: 1 12/15, 2nd number: 20/35
27/15 - 20/35 is 43/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
27/15 = 27 × 7/15 × 7 = 189/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
20/35 = 20 × 3/35 × 3 = 60/105 - Subtract the two like fractions:
189/105 - 60/105 = 189 - 60/105 = 129/105 - After reducing the fraction, the answer is 43/35
- In mixed form: 18/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-20/35 27/15-40/35 27/30-20/35 27/15-20/70 81/15-20/35 27/15-60/35 27/45-20/35 27/75-20/35