Add 54/12 and 70/42
1st number: 4 6/12, 2nd number: 1 28/42
54/12 + 70/42 is 37/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
54/12 = 54 × 7/12 × 7 = 378/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
70/42 = 70 × 2/42 × 2 = 140/84 - Add the two like fractions:
378/84 + 140/84 = 378 + 140/84 = 518/84 - 518/84 simplified gives 37/6
- So, 54/12 + 70/42 = 37/6
In mixed form: 61/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/24+70/42 54/12+70/84 54/36+70/42 54/60+70/42 54/84+70/42