Add 18/10 and 20/84
1st number: 1 8/10, 2nd number: 20/84
18/10 + 20/84 is 214/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
18/10 = 18 × 42/10 × 42 = 756/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Add the two like fractions:
756/420 + 100/420 = 756 + 100/420 = 856/420 - 856/420 simplified gives 214/105
- So, 18/10 + 20/84 = 214/105
In mixed form: 24/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10+20/84 18/10+40/84 18/20+20/84 54/10+20/84 18/10+60/84 18/30+20/84 90/10+20/84 18/50+20/84 18/70+20/84