Add 84/49 and 81/60
1st number: 1 35/49, 2nd number: 1 21/60
84/49 + 81/60 is 429/140.
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,
84/49 = 84 × 60/49 × 60 = 5040/2940 - Likewise, for the 2nd fraction, since 60 × 49 = 2940,
81/60 = 81 × 49/60 × 49 = 3969/2940 - Add the two like fractions:
5040/2940 + 3969/2940 = 5040 + 3969/2940 = 9009/2940 - 9009/2940 simplified gives 429/140
- So, 84/49 + 81/60 = 429/140
In mixed form: 39/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98+81/60