Add 60/21 and 70/24
1st number: 2 18/21, 2nd number: 2 22/24
60/21 + 70/24 is 485/84.
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,
60/21 = 60 × 8/21 × 8 = 480/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
70/24 = 70 × 7/24 × 7 = 490/168 - Add the two like fractions:
480/168 + 490/168 = 480 + 490/168 = 970/168 - 970/168 simplified gives 485/84
- So, 60/21 + 70/24 = 485/84
In mixed form: 565/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+70/24 60/21+70/48 60/63+70/24 60/21+70/72