Subtract 18/30 from 90/2
1st number: 45 0/2, 2nd number: 18/30
90/2 - 18/30 is 222/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
90/2 = 90 × 15/2 × 15 = 1350/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
18/30 = 18 × 1/30 × 1 = 18/30 - Subtract the two like fractions:
1350/30 - 18/30 = 1350 - 18/30 = 1332/30 - After reducing the fraction, the answer is 222/5
- In mixed form: 442/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-36/30 90/4-18/30 90/2-18/60 90/2-54/30 90/6-18/30 90/2-18/90 90/2-90/30 90/10-18/30 90/14-18/30