Add 42/49 and 72/60
1st number: 42/49, 2nd number: 1 12/60
42/49 + 72/60 is 72/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 60 is 2940
Next, find the equivalent fraction of both fractional numbers with denominator 2940 - For the 1st fraction, since 49 × 60 = 2940,
42/49 = 42 × 60/49 × 60 = 2520/2940 - Likewise, for the 2nd fraction, since 60 × 49 = 2940,
72/60 = 72 × 49/60 × 49 = 3528/2940 - Add the two like fractions:
2520/2940 + 3528/2940 = 2520 + 3528/2940 = 6048/2940 - 6048/2940 simplified gives 72/35
- So, 42/49 + 72/60 = 72/35
In mixed form: 22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/49+72/60 42/98+72/60