Subtract 1/45 from 30/48
30/48 - 1/45 is 217/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
30/48 = 30 × 15/48 × 15 = 450/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
1/45 = 1 × 16/45 × 16 = 16/720 - Subtract the two like fractions:
450/720 - 16/720 = 450 - 16/720 = 434/720 - After reducing the fraction, the answer is 217/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/48-1/45 30/48-2/45 30/96-1/45 30/48-1/90 90/48-1/45 30/48-3/45 30/48-5/45 30/48-7/45