Subtract 10/60 from 18/70
18/70 - 10/60 is 19/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
18/70 = 18 × 6/70 × 6 = 108/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
10/60 = 10 × 7/60 × 7 = 70/420 - Subtract the two like fractions:
108/420 - 70/420 = 108 - 70/420 = 38/420 - After reducing the fraction, the answer is 19/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-10/60 18/70-20/60 54/70-10/60 18/70-30/60 90/70-10/60 18/70-50/60 18/70-70/60