Add 70/40 and 40/18
1st number: 1 30/40, 2nd number: 2 4/18
70/40 + 40/18 is 143/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
40/18 = 40 × 20/18 × 20 = 800/360 - Add the two like fractions:
630/360 + 800/360 = 630 + 800/360 = 1430/360 - 1430/360 simplified gives 143/36
- So, 70/40 + 40/18 = 143/36
In mixed form: 335/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+80/18 70/80+40/18 70/40+40/36 70/40+40/54 70/40+40/90