Add 42/40 and 9/24
1st number: 1 2/40, 2nd number: 9/24
42/40 + 9/24 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
9/24 = 9 × 5/24 × 5 = 45/120 - Add the two like fractions:
126/120 + 45/120 = 126 + 45/120 = 171/120 - 171/120 simplified gives 57/40
- So, 42/40 + 9/24 = 57/40
In mixed form: 117/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+9/24 42/40+18/24 42/80+9/24 42/40+9/48 42/40+27/24 42/40+9/72 42/40+45/24 42/40+63/24