Subtract 27/8 from 84/70
1st number: 1 14/70, 2nd number: 3 3/8
84/70 - 27/8 is -87/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
84/70 = 84 × 4/70 × 4 = 336/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
27/8 = 27 × 35/8 × 35 = 945/280 - Subtract the two like fractions:
336/280 - 945/280 = 336 - 945/280 = -609/280 - After reducing the fraction, the answer is -87/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-54/8 84/70-27/16 84/70-81/8 84/70-27/24 84/70-27/40 84/70-27/56