Subtract 18/10 from 63/70
1st number: 63/70, 2nd number: 1 8/10
63/70 - 18/10 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
63/70 = 63 × 1/70 × 1 = 63/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
18/10 = 18 × 7/10 × 7 = 126/70 - Subtract the two like fractions:
63/70 - 126/70 = 63 - 126/70 = -63/70 - After reducing the fraction, the answer is -9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-36/10 63/70-18/20 63/70-54/10 63/70-18/30 63/70-90/10 63/70-18/50 63/70-18/70