Add 42/72 and 54/6
1st number: 42/72, 2nd number: 9 0/6
42/72 + 54/6 is 115/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 6 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Likewise, for the 2nd fraction, since 6 × 12 = 72,
54/6 = 54 × 12/6 × 12 = 648/72 - Add the two like fractions:
42/72 + 648/72 = 42 + 648/72 = 690/72 - 690/72 simplified gives 115/12
- So, 42/72 + 54/6 = 115/12
In mixed form: 97/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/72+54/6 42/72+54/12 42/72+54/18 42/72+54/30 42/72+54/42