Add 40/72 and 49/54
40/72 + 49/54 is 79/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
40/72 = 40 × 3/72 × 3 = 120/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
49/54 = 49 × 4/54 × 4 = 196/216 - Add the two like fractions:
120/216 + 196/216 = 120 + 196/216 = 316/216 - 316/216 simplified gives 79/54
- So, 40/72 + 49/54 = 79/54
In mixed form: 125/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72+49/54 40/72+98/54