Add 42/30 and 54/24
1st number: 1 12/30, 2nd number: 2 6/24
42/30 + 54/24 is 73/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
42/30 = 42 × 4/30 × 4 = 168/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
54/24 = 54 × 5/24 × 5 = 270/120 - Add the two like fractions:
168/120 + 270/120 = 168 + 270/120 = 438/120 - 438/120 simplified gives 73/20
- So, 42/30 + 54/24 = 73/20
In mixed form: 313/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+54/24 42/60+54/24 42/30+54/48 42/90+54/24 42/30+54/72