Add 7/8 and 49/72
7/8 + 49/72 is 14/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
7/8 = 7 × 9/8 × 9 = 63/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
49/72 = 49 × 1/72 × 1 = 49/72 - Add the two like fractions:
63/72 + 49/72 = 63 + 49/72 = 112/72 - 112/72 simplified gives 14/9
- So, 7/8 + 49/72 = 14/9
In mixed form: 15/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+49/72 7/8+98/72 7/16+49/72 21/8+49/72 7/24+49/72 35/8+49/72 7/40+49/72 49/8+49/72 7/56+49/72