Add 30/18 and 32/84
1st number: 1 12/18, 2nd number: 32/84
30/18 + 32/84 is 43/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
32/84 = 32 × 3/84 × 3 = 96/252 - Add the two like fractions:
420/252 + 96/252 = 420 + 96/252 = 516/252 - 516/252 simplified gives 43/21
- So, 30/18 + 32/84 = 43/21
In mixed form: 21/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+32/84 30/18+64/84 30/36+32/84 90/18+32/84 30/18+96/84 30/54+32/84 30/90+32/84