Subtract 16/27 from 21/72
2172 - 1627 is -65216.
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,
2172 = 21 × 372 × 3 = 63216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
1627 = 16 × 827 × 8 = 128216 - Subtract the two like fractions:
63216 - 128216 = 63 - 128216 = -65216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72-16/27 21/72-32/27 21/72-16/54 63/72-16/27 21/72-48/27 21/72-16/81 21/72-80/27