Add 12/5 and 48/21
1st number: 2 2/5, 2nd number: 2 6/21
12/5 + 48/21 is 164/35.
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,
12/5 = 12 × 21/5 × 21 = 252/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
48/21 = 48 × 5/21 × 5 = 240/105 - Add the two like fractions:
252/105 + 240/105 = 252 + 240/105 = 492/105 - 492/105 simplified gives 164/35
- So, 12/5 + 48/21 = 164/35
In mixed form: 424/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5+48/21 12/5+96/21 12/10+48/21 12/5+48/42 36/5+48/21 12/15+48/21 12/5+48/63 60/5+48/21 12/25+48/21 84/5+48/21 12/35+48/21