Add 72/42 and 27/24
1st number: 1 30/42, 2nd number: 1 3/24
72/42 + 27/24 is 159/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
72/42 = 72 × 4/42 × 4 = 288/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
27/24 = 27 × 7/24 × 7 = 189/168 - Add the two like fractions:
288/168 + 189/168 = 288 + 189/168 = 477/168 - 477/168 simplified gives 159/56
- So, 72/42 + 27/24 = 159/56
In mixed form: 247/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42+54/24 72/84+27/24 72/42+27/48 72/42+81/24 72/42+27/72