Add 90/16 and 18/72
1st number: 5 10/16, 2nd number: 18/72
90/16 + 18/72 is 47/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
90/16 = 90 × 9/16 × 9 = 810/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
18/72 = 18 × 2/72 × 2 = 36/144 - Add the two like fractions:
810/144 + 36/144 = 810 + 36/144 = 846/144 - 846/144 simplified gives 47/8
- So, 90/16 + 18/72 = 47/8
In mixed form: 57/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+36/72 90/32+18/72 90/16+54/72 90/48+18/72 90/16+90/72 90/80+18/72