Subtract 70/8 from 18/25
1st number: 18/25, 2nd number: 8 6/8
18/25 - 70/8 is -803/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
18/25 = 18 × 8/25 × 8 = 144/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
70/8 = 70 × 25/8 × 25 = 1750/200 - Subtract the two like fractions:
144/200 - 1750/200 = 144 - 1750/200 = -1606/200 - After reducing the fraction, the answer is -803/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/25-70/8 18/50-70/8 18/25-70/16 54/25-70/8 18/75-70/8 18/25-70/24 90/25-70/8 18/25-70/40 18/25-70/56