Subtract 20/70 from 84/96
84/96 - 20/70 is 33/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 70 is 3360
Next, find the equivalent fraction of both fractional numbers with denominator 3360 - For the 1st fraction, since 96 × 35 = 3360,
84/96 = 84 × 35/96 × 35 = 2940/3360 - Likewise, for the 2nd fraction, since 70 × 48 = 3360,
20/70 = 20 × 48/70 × 48 = 960/3360 - Subtract the two like fractions:
2940/3360 - 960/3360 = 2940 - 960/3360 = 1980/3360 - After reducing the fraction, the answer is 33/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/96-40/70 84/96-60/70