Subtract 20/30 from 6/56
6/56 - 20/30 is -47/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
6/56 = 6 × 15/56 × 15 = 90/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
20/30 = 20 × 28/30 × 28 = 560/840 - Subtract the two like fractions:
90/840 - 560/840 = 90 - 560/840 = -470/840 - After reducing the fraction, the answer is -47/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/56-20/30 6/56-40/30 6/56-20/60 18/56-20/30 6/56-60/30 6/56-20/90 30/56-20/30 42/56-20/30