Subtract 40/30 from 1/45
1st number: 1/45, 2nd number: 1 10/30
1/45 - 40/30 is -59/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
1/45 = 1 × 2/45 × 2 = 2/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
40/30 = 40 × 3/30 × 3 = 120/90 - Subtract the two like fractions:
2/90 - 120/90 = 2 - 120/90 = -118/90 - After reducing the fraction, the answer is -59/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45-40/30 1/45-80/30 1/90-40/30 1/45-40/60 3/45-40/30 1/45-40/90 5/45-40/30 7/45-40/30