Subtract 30/8 from 1/45
1st number: 1/45, 2nd number: 3 6/8
1/45 - 30/8 is -671/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
1/45 = 1 × 8/45 × 8 = 8/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
30/8 = 30 × 45/8 × 45 = 1350/360 - Subtract the two like fractions:
8/360 - 1350/360 = 8 - 1350/360 = -1342/360 - After reducing the fraction, the answer is -671/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45-30/8 1/45-60/8 1/90-30/8 1/45-30/16 3/45-30/8 1/45-90/8 1/45-30/24 5/45-30/8 1/45-30/40 7/45-30/8 1/45-30/56