Subtract 1/5 from 90/27
1st number: 3 9/27, 2nd number: 1/5
90/27 - 1/5 is 47/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 5 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
90/27 = 90 × 5/27 × 5 = 450/135 - Likewise, for the 2nd fraction, since 5 × 27 = 135,
1/5 = 1 × 27/5 × 27 = 27/135 - Subtract the two like fractions:
450/135 - 27/135 = 450 - 27/135 = 423/135 - After reducing the fraction, the answer is 47/15
- In mixed form: 32/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27-2/5 90/54-1/5 90/27-1/10 90/27-3/5 90/81-1/5 90/27-1/15 90/27-1/25 90/27-7/5 90/27-1/35