Subtract 30/90 from 40/2
1st number: 20 0/2, 2nd number: 30/90
40/2 - 30/90 is 59/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
40/2 = 40 × 45/2 × 45 = 1800/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
30/90 = 30 × 1/90 × 1 = 30/90 - Subtract the two like fractions:
1800/90 - 30/90 = 1800 - 30/90 = 1770/90 - After reducing the fraction, the answer is 59/3
- In mixed form: 192/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2-30/90 40/2-60/90 40/4-30/90 40/6-30/90 40/10-30/90 40/14-30/90