Add 70/40 and 1/18
1st number: 1 30/40, 2nd number: 1/18
70/40 + 1/18 is 65/36.
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,
1/18 = 1 × 20/18 × 20 = 20/360 - Add the two like fractions:
630/360 + 20/360 = 630 + 20/360 = 650/360 - 650/360 simplified gives 65/36
- So, 70/40 + 1/18 = 65/36
In mixed form: 129/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+2/18 70/80+1/18 70/40+1/36 70/40+3/18 70/40+1/54 70/40+5/18 70/40+1/90 70/40+7/18