Subtract 45/30 from 2/72
1st number: 2/72, 2nd number: 1 15/30
2/72 - 45/30 is -53/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
2/72 = 2 × 5/72 × 5 = 10/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
45/30 = 45 × 12/30 × 12 = 540/360 - Subtract the two like fractions:
10/360 - 540/360 = 10 - 540/360 = -530/360 - After reducing the fraction, the answer is -53/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/72-45/30 2/72-90/30 2/72-45/60 6/72-45/30 2/72-45/90 10/72-45/30 14/72-45/30