Subtract 84/64 from 56/70
1st number: 56/70, 2nd number: 1 20/64
56/70 - 84/64 is -41/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 64 is 2240
Next, find the equivalent fraction of both fractional numbers with denominator 2240 - For the 1st fraction, since 70 × 32 = 2240,
56/70 = 56 × 32/70 × 32 = 1792/2240 - Likewise, for the 2nd fraction, since 64 × 35 = 2240,
84/64 = 84 × 35/64 × 35 = 2940/2240 - Subtract the two like fractions:
1792/2240 - 2940/2240 = 1792 - 2940/2240 = -1148/2240 - After reducing the fraction, the answer is -41/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: