Add 42/54 and 16/9
1st number: 42/54, 2nd number: 1 7/9
42/54 + 16/9 is 23/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
16/9 = 16 × 6/9 × 6 = 96/54 - Add the two like fractions:
42/54 + 96/54 = 42 + 96/54 = 138/54 - 138/54 simplified gives 23/9
- So, 42/54 + 16/9 = 23/9
In mixed form: 25/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54+16/9 42/54+32/9 42/54+16/18 42/54+48/9 42/54+16/27 42/54+80/9 42/54+16/45 42/54+16/63