Subtract 1/45 from 8/30
8/30 - 1/45 is 11/45.
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,
8/30 = 8 × 3/30 × 3 = 24/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Subtract the two like fractions:
24/90 - 2/90 = 24 - 2/90 = 22/90 - After reducing the fraction, the answer is 11/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30-1/45 8/30-2/45 8/60-1/45 8/30-1/90 24/30-1/45 8/30-3/45 8/90-1/45 40/30-1/45 8/30-5/45 56/30-1/45 8/30-7/45