Subtract 1/54 from 90/30
1st number: 3 0/30, 2nd number: 1/54
90/30 - 1/54 is 161/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
90/30 = 90 × 9/30 × 9 = 810/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
1/54 = 1 × 5/54 × 5 = 5/270 - Subtract the two like fractions:
810/270 - 5/270 = 810 - 5/270 = 805/270 - After reducing the fraction, the answer is 161/54
- In mixed form: 253/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-2/54 90/60-1/54 90/30-3/54 90/30-5/54 90/30-7/54