Subtract 16/15 from 45/70
1st number: 45/70, 2nd number: 1 1/15
45/70 - 16/15 is -89/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
45/70 = 45 × 3/70 × 3 = 135/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
16/15 = 16 × 14/15 × 14 = 224/210 - Subtract the two like fractions:
135/210 - 224/210 = 135 - 224/210 = -89/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-16/15 45/70-32/15 45/70-16/30 45/70-48/15 45/70-16/45 45/70-80/15 45/70-16/75