Subtract 20/10 from 84/56
1st number: 1 28/56, 2nd number: 2 0/10
84/56 - 20/10 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 10 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
84/56 = 84 × 5/56 × 5 = 420/280 - Likewise, for the 2nd fraction, since 10 × 28 = 280,
20/10 = 20 × 28/10 × 28 = 560/280 - Subtract the two like fractions:
420/280 - 560/280 = 420 - 560/280 = -140/280 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-40/10 84/56-60/10 84/56-20/30 84/56-20/50 84/56-20/70