Add 28/3 and 90/72
1st number: 9 1/3, 2nd number: 1 18/72
28/3 + 90/72 is 127/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
28/3 = 28 × 24/3 × 24 = 672/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
672/72 + 90/72 = 672 + 90/72 = 762/72 - 762/72 simplified gives 127/12
- So, 28/3 + 90/72 = 127/12
In mixed form: 107/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/3+90/72 28/6+90/72 84/3+90/72 28/9+90/72 28/15+90/72 28/21+90/72