Subtract 6/30 from 90/20
1st number: 4 10/20, 2nd number: 6/30
90/20 - 6/30 is 43/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
6/30 = 6 × 2/30 × 2 = 12/60 - Subtract the two like fractions:
270/60 - 12/60 = 270 - 12/60 = 258/60 - After reducing the fraction, the answer is 43/10
- In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-12/30 90/40-6/30 90/20-6/60 90/20-18/30 90/60-6/30 90/20-6/90 90/20-42/30