Add 10/12 and 10/84
10/12 + 10/84 is 20/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
10/12 = 10 × 7/12 × 7 = 70/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
10/84 = 10 × 1/84 × 1 = 10/84 - Add the two like fractions:
70/84 + 10/84 = 70 + 10/84 = 80/84 - 80/84 simplified gives 20/21
- So, 10/12 + 10/84 = 20/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12+10/84 10/12+20/84 10/24+10/84 30/12+10/84 10/12+30/84 10/36+10/84 50/12+10/84 10/12+50/84 10/60+10/84 70/12+10/84 10/12+70/84 10/84+10/84