Subtract 90/12 from 5/30
1st number: 5/30, 2nd number: 7 6/12
5/30 - 90/12 is -22/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
5/30 = 5 × 2/30 × 2 = 10/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Subtract the two like fractions:
10/60 - 450/60 = 10 - 450/60 = -440/60 - After reducing the fraction, the answer is -22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-90/12 5/60-90/12 5/30-90/24 15/30-90/12 5/90-90/12 5/30-90/36 25/30-90/12 5/30-90/60 35/30-90/12 5/30-90/84