Subtract 20/56 from 84/30
1st number: 2 24/30, 2nd number: 20/56
84/30 - 20/56 is 171/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
84/30 = 84 × 28/30 × 28 = 2352/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
20/56 = 20 × 15/56 × 15 = 300/840 - Subtract the two like fractions:
2352/840 - 300/840 = 2352 - 300/840 = 2052/840 - After reducing the fraction, the answer is 171/70
- In mixed form: 231/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30-40/56 84/60-20/56 84/30-60/56 84/90-20/56