Subtract 45/27 from 3/72
1st number: 3/72, 2nd number: 1 18/27
3/72 - 45/27 is -13/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
3/72 = 3 × 3/72 × 3 = 9/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
45/27 = 45 × 8/27 × 8 = 360/216 - Subtract the two like fractions:
9/216 - 360/216 = 9 - 360/216 = -351/216 - After reducing the fraction, the answer is -13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/72-45/27 3/72-90/27 3/72-45/54 9/72-45/27 3/72-45/81 15/72-45/27 21/72-45/27