Add 21/5 and 70/24
1st number: 4 1/5, 2nd number: 2 22/24
21/5 + 70/24 is 427/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 5 × 24 = 120,
21/5 = 21 × 24/5 × 24 = 504/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
70/24 = 70 × 5/24 × 5 = 350/120 - Add the two like fractions:
504/120 + 350/120 = 504 + 350/120 = 854/120 - 854/120 simplified gives 427/60
- So, 21/5 + 70/24 = 427/60
In mixed form: 77/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+70/24 21/10+70/24 21/5+70/48 63/5+70/24 21/15+70/24 21/5+70/72 21/25+70/24 21/35+70/24