Add 42/72 and 1/9
42/72 + 1/9 is 25/36.
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,
1/9 = 1 × 8/9 × 8 = 8/72 - Add the two like fractions:
42/72 + 8/72 = 42 + 8/72 = 50/72 - 50/72 simplified gives 25/36
- So, 42/72 + 1/9 = 25/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/72+1/9 42/72+2/9 42/72+1/18 42/72+3/9 42/72+1/27 42/72+5/9 42/72+1/45 42/72+7/9 42/72+1/63