Add 81/49 and 9/20
1st number: 1 32/49, 2nd number: 9/20
81/49 + 9/20 is 2061/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
81/49 = 81 × 20/49 × 20 = 1620/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
9/20 = 9 × 49/20 × 49 = 441/980 - Add the two like fractions:
1620/980 + 441/980 = 1620 + 441/980 = 2061/980 - So, 81/49 + 9/20 = 2061/980
In mixed form: 2101/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/49+18/20 81/98+9/20 81/49+9/40 81/49+27/20 81/49+9/60 81/49+45/20 81/49+63/20