Add 12/42 and 54/7
1st number: 12/42, 2nd number: 7 5/7
12/42 + 54/7 is 8/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
12/42 = 12 × 1/42 × 1 = 12/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
54/7 = 54 × 6/7 × 6 = 324/42 - Add the two like fractions:
12/42 + 324/42 = 12 + 324/42 = 336/42 - 336/42 simplified gives 8/1
- So, 12/42 + 54/7 = 8/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+54/7 12/84+54/7 12/42+54/14 36/42+54/7 12/42+54/21 60/42+54/7 12/42+54/35 84/42+54/7 12/42+54/49