Add 81/49 and 2/40
1st number: 1 32/49, 2nd number: 2/40
81/49 + 2/40 is 1669/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 49 × 40 = 1960,
81/49 = 81 × 40/49 × 40 = 3240/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
2/40 = 2 × 49/40 × 49 = 98/1960 - Add the two like fractions:
3240/1960 + 98/1960 = 3240 + 98/1960 = 3338/1960 - 3338/1960 simplified gives 1669/980
- So, 81/49 + 2/40 = 1669/980
In mixed form: 1689/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/49+4/40 81/98+2/40 81/49+2/80 81/49+6/40 81/49+10/40 81/49+14/40