Add 42/10 and 54/24
1st number: 4 2/10, 2nd number: 2 6/24
42/10 + 54/24 is 129/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 10 × 12 = 120,
42/10 = 42 × 12/10 × 12 = 504/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
54/24 = 54 × 5/24 × 5 = 270/120 - Add the two like fractions:
504/120 + 270/120 = 504 + 270/120 = 774/120 - 774/120 simplified gives 129/20
- So, 42/10 + 54/24 = 129/20
In mixed form: 69/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+54/24 42/20+54/24 42/10+54/48 42/30+54/24 42/10+54/72 42/50+54/24 42/70+54/24