Add 18/84 and 81/50
1st number: 18/84, 2nd number: 1 31/50
18/84 + 81/50 is 321/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
18/84 = 18 × 25/84 × 25 = 450/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
81/50 = 81 × 42/50 × 42 = 3402/2100 - Add the two like fractions:
450/2100 + 3402/2100 = 450 + 3402/2100 = 3852/2100 - 3852/2100 simplified gives 321/175
- So, 18/84 + 81/50 = 321/175
In mixed form: 1146/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+81/50 54/84+81/50 90/84+81/50