Add 3/84 and 10/80
3/84 + 10/80 is 9/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
3/84 = 3 × 20/84 × 20 = 60/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
10/80 = 10 × 21/80 × 21 = 210/1680 - Add the two like fractions:
60/1680 + 210/1680 = 60 + 210/1680 = 270/1680 - 270/1680 simplified gives 9/56
- So, 3/84 + 10/80 = 9/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84+10/80 3/84+20/80 9/84+10/80 3/84+30/80 15/84+10/80 3/84+50/80 21/84+10/80 3/84+70/80