Subtract 70/8 from 27/20
1st number: 1 7/20, 2nd number: 8 6/8
27/20 - 70/8 is -37/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
27/20 = 27 × 2/20 × 2 = 54/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
70/8 = 70 × 5/8 × 5 = 350/40 - Subtract the two like fractions:
54/40 - 350/40 = 54 - 350/40 = -296/40 - After reducing the fraction, the answer is -37/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20-70/8 27/40-70/8 27/20-70/16 81/20-70/8 27/60-70/8 27/20-70/24 27/20-70/40 27/20-70/56