Add 1/5 and 24/21
1st number: 1/5, 2nd number: 1 3/21
1/5 + 24/21 is 47/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
1/5 = 1 × 21/5 × 21 = 21/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
24/21 = 24 × 5/21 × 5 = 120/105 - Add the two like fractions:
21/105 + 120/105 = 21 + 120/105 = 141/105 - 141/105 simplified gives 47/35
- So, 1/5 + 24/21 = 47/35
In mixed form: 112/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5+24/21 1/5+48/21 1/10+24/21 1/5+24/42 3/5+24/21 1/5+72/21 1/15+24/21 1/5+24/63 1/25+24/21 7/5+24/21 1/35+24/21