Add 75/72 and 42/48
1st number: 1 3/72, 2nd number: 42/48
75/72 + 42/48 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
75/72 = 75 × 2/72 × 2 = 150/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
42/48 = 42 × 3/48 × 3 = 126/144 - Add the two like fractions:
150/144 + 126/144 = 150 + 126/144 = 276/144 - 276/144 simplified gives 23/12
- So, 75/72 + 42/48 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/72+84/48 75/72+42/96