Add 84/30 and 40/90
1st number: 2 24/30, 2nd number: 40/90
84/30 + 40/90 is 146/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
84/30 = 84 × 3/30 × 3 = 252/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
40/90 = 40 × 1/90 × 1 = 40/90 - Add the two like fractions:
252/90 + 40/90 = 252 + 40/90 = 292/90 - 292/90 simplified gives 146/45
- So, 84/30 + 40/90 = 146/45
In mixed form: 311/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+80/90 84/60+40/90 84/90+40/90