Subtract 45/70 from 10/15
10/15 - 45/70 is 1/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
10/15 = 10 × 14/15 × 14 = 140/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
45/70 = 45 × 3/70 × 3 = 135/210 - Subtract the two like fractions:
140/210 - 135/210 = 140 - 135/210 = 5/210 - After reducing the fraction, the answer is 1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15-45/70 10/15-90/70 10/30-45/70 30/15-45/70 10/45-45/70 50/15-45/70 10/75-45/70 70/15-45/70