Add 9/54 and 63/42
1st number: 9/54, 2nd number: 1 21/42
9/54 + 63/42 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378 - Add the two like fractions:
63/378 + 567/378 = 63 + 567/378 = 630/378 - 630/378 simplified gives 5/3
- So, 9/54 + 63/42 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/54+63/42 9/54+63/84 27/54+63/42 45/54+63/42 63/54+63/42