Add 1/21 and 24/60
1/21 + 24/60 is 47/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
1/21 = 1 × 20/21 × 20 = 20/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
24/60 = 24 × 7/60 × 7 = 168/420 - Add the two like fractions:
20/420 + 168/420 = 20 + 168/420 = 188/420 - 188/420 simplified gives 47/105
- So, 1/21 + 24/60 = 47/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+24/60 1/21+48/60 1/42+24/60 3/21+24/60 1/21+72/60 1/63+24/60 5/21+24/60 7/21+24/60