Subtract 9/45 from 30/24
1st number: 1 6/24, 2nd number: 9/45
30/24 - 9/45 is 21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
30/24 = 30 × 15/24 × 15 = 450/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
9/45 = 9 × 8/45 × 8 = 72/360 - Subtract the two like fractions:
450/360 - 72/360 = 450 - 72/360 = 378/360 - After reducing the fraction, the answer is 21/20
- In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24-9/45 30/24-18/45 30/48-9/45 30/24-9/90 90/24-9/45 30/24-27/45 30/72-9/45 30/24-63/45