Subtract 72/6 from 4/45
1st number: 4/45, 2nd number: 12 0/6
4/45 - 72/6 is -536/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
4/45 = 4 × 2/45 × 2 = 8/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
72/6 = 72 × 15/6 × 15 = 1080/90 - Subtract the two like fractions:
8/90 - 1080/90 = 8 - 1080/90 = -1072/90 - After reducing the fraction, the answer is -536/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-72/6 4/90-72/6 4/45-72/12 12/45-72/6 4/45-72/18 20/45-72/6 4/45-72/30 28/45-72/6 4/45-72/42