Add 54/42 and 63/9
1st number: 1 12/42, 2nd number: 7 0/9
54/42 + 63/9 is 58/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
54/42 = 54 × 3/42 × 3 = 162/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
63/9 = 63 × 14/9 × 14 = 882/126 - Add the two like fractions:
162/126 + 882/126 = 162 + 882/126 = 1044/126 - 1044/126 simplified gives 58/7
- So, 54/42 + 63/9 = 58/7
In mixed form: 82/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+63/9 54/42+63/18 54/42+63/27 54/42+63/45