Add 6/18 and 70/40
1st number: 6/18, 2nd number: 1 30/40
6/18 + 70/40 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
6/18 = 6 × 20/18 × 20 = 120/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Add the two like fractions:
120/360 + 630/360 = 120 + 630/360 = 750/360 - 750/360 simplified gives 25/12
- So, 6/18 + 70/40 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18+70/40 6/36+70/40 6/18+70/80 6/54+70/40 30/18+70/40 6/90+70/40 42/18+70/40