Subtract 1/45 from 5/30
5/30 - 1/45 is 13/90.
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,
5/30 = 5 × 3/30 × 3 = 15/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Subtract the two like fractions:
15/90 - 2/90 = 15 - 2/90 = 13/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-1/45 5/30-2/45 5/60-1/45 5/30-1/90 15/30-1/45 5/30-3/45 5/90-1/45 25/30-1/45 5/30-5/45 35/30-1/45 5/30-7/45