Add 54/42 and 10/12
1st number: 1 12/42, 2nd number: 10/12
54/42 + 10/12 is 89/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
54/42 = 54 × 2/42 × 2 = 108/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
10/12 = 10 × 7/12 × 7 = 70/84 - Add the two like fractions:
108/84 + 70/84 = 108 + 70/84 = 178/84 - 178/84 simplified gives 89/42
- So, 54/42 + 10/12 = 89/42
In mixed form: 25/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42+20/12 54/84+10/12 54/42+10/24 54/42+30/12 54/42+10/36 54/42+50/12 54/42+10/60 54/42+70/12 54/42+10/84