Add 42/72 and 49/9
1st number: 42/72, 2nd number: 5 4/9
42/72 + 49/9 is 217/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
49/9 = 49 × 8/9 × 8 = 392/72 - Add the two like fractions:
42/72 + 392/72 = 42 + 392/72 = 434/72 - 434/72 simplified gives 217/36
- So, 42/72 + 49/9 = 217/36
In mixed form: 61/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/72+49/9 42/72+98/9 42/72+49/18 42/72+49/27 42/72+49/45 42/72+49/63