Add 4/98 and 81/40
1st number: 4/98, 2nd number: 2 1/40
4/98 + 81/40 is 4049/1960.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
4/98 = 4 × 20/98 × 20 = 80/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
81/40 = 81 × 49/40 × 49 = 3969/1960 - Add the two like fractions:
80/1960 + 3969/1960 = 80 + 3969/1960 = 4049/1960 - So, 4/98 + 81/40 = 4049/1960
In mixed form: 2129/1960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/98+81/40 4/98+81/80 12/98+81/40 20/98+81/40 28/98+81/40