Add 84/75 and 28/40
1st number: 1 9/75, 2nd number: 28/40
84/75 + 28/40 is 91/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
84/75 = 84 × 8/75 × 8 = 672/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
28/40 = 28 × 15/40 × 15 = 420/600 - Add the two like fractions:
672/600 + 420/600 = 672 + 420/600 = 1092/600 - 1092/600 simplified gives 91/50
- So, 84/75 + 28/40 = 91/50
In mixed form: 141/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+56/40 84/75+28/80 84/75+84/40