Add 7/72 and 28/16
1st number: 7/72, 2nd number: 1 12/16
7/72 + 28/16 is 133/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
7/72 = 7 × 2/72 × 2 = 14/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
28/16 = 28 × 9/16 × 9 = 252/144 - Add the two like fractions:
14/144 + 252/144 = 14 + 252/144 = 266/144 - 266/144 simplified gives 133/72
- So, 7/72 + 28/16 = 133/72
In mixed form: 161/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72+28/16 7/72+56/16 7/72+28/32 21/72+28/16 7/72+84/16 7/72+28/48 35/72+28/16 7/72+28/80 49/72+28/16