Add 1/84 and 10/20
1/84 + 10/20 is 43/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
1/84 = 1 × 5/84 × 5 = 5/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
10/20 = 10 × 21/20 × 21 = 210/420 - Add the two like fractions:
5/420 + 210/420 = 5 + 210/420 = 215/420 - 215/420 simplified gives 43/84
- So, 1/84 + 10/20 = 43/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84+10/20 1/84+10/40 3/84+10/20 1/84+30/20 1/84+10/60 5/84+10/20 1/84+50/20 7/84+10/20 1/84+70/20