Subtract 2/45 from 90/30
1st number: 3 0/30, 2nd number: 2/45
90/30 - 2/45 is 133/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
2/45 = 2 × 2/45 × 2 = 4/90 - Subtract the two like fractions:
270/90 - 4/90 = 270 - 4/90 = 266/90 - After reducing the fraction, the answer is 133/45
- In mixed form: 243/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-4/45 90/60-2/45 90/30-2/90 90/30-6/45 90/30-10/45 90/30-14/45