Add 1/90 and 84/40
1st number: 1/90, 2nd number: 2 4/40
1/90 + 84/40 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
1/90 = 1 × 4/90 × 4 = 4/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
84/40 = 84 × 9/40 × 9 = 756/360 - Add the two like fractions:
4/360 + 756/360 = 4 + 756/360 = 760/360 - 760/360 simplified gives 19/9
- So, 1/90 + 84/40 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90+84/40 1/90+84/80 3/90+84/40 5/90+84/40 7/90+84/40