Subtract 15/12 from 35/80
1st number: 35/80, 2nd number: 1 3/12
35/80 - 15/12 is -13/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
35/80 = 35 × 3/80 × 3 = 105/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
15/12 = 15 × 20/12 × 20 = 300/240 - Subtract the two like fractions:
105/240 - 300/240 = 105 - 300/240 = -195/240 - After reducing the fraction, the answer is -13/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80-15/12 35/80-30/12 35/80-15/24 35/80-45/12 35/80-15/36 35/80-75/12 35/80-15/60 35/80-15/84