Subtract 2/45 from 40/12
1st number: 3 4/12, 2nd number: 2/45
40/12 - 2/45 is 148/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
40/12 = 40 × 15/12 × 15 = 600/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
2/45 = 2 × 4/45 × 4 = 8/180 - Subtract the two like fractions:
600/180 - 8/180 = 600 - 8/180 = 592/180 - After reducing the fraction, the answer is 148/45
- In mixed form: 313/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-2/45 40/12-4/45 40/24-2/45 40/12-2/90 40/12-6/45 40/36-2/45 40/12-10/45 40/60-2/45 40/12-14/45 40/84-2/45