Add 90/48 and 84/45
1st number: 1 42/48, 2nd number: 1 39/45
90/48 + 84/45 is 449/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
90/48 = 90 × 15/48 × 15 = 1350/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
84/45 = 84 × 16/45 × 16 = 1344/720 - Add the two like fractions:
1350/720 + 1344/720 = 1350 + 1344/720 = 2694/720 - 2694/720 simplified gives 449/120
- So, 90/48 + 84/45 = 449/120
In mixed form: 389/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/96+84/45 90/48+84/90