Add 12/21 and 10/24
12/21 + 10/24 is 83/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
12/21 = 12 × 8/21 × 8 = 96/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
10/24 = 10 × 7/24 × 7 = 70/168 - Add the two like fractions:
96/168 + 70/168 = 96 + 70/168 = 166/168 - 166/168 simplified gives 83/84
- So, 12/21 + 10/24 = 83/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21+10/24 12/21+20/24 12/42+10/24 12/21+10/48 36/21+10/24 12/21+30/24 12/63+10/24 12/21+10/72 60/21+10/24 12/21+50/24 84/21+10/24 12/21+70/24