Add 70/6 and 20/45
1st number: 11 4/6, 2nd number: 20/45
70/6 + 20/45 is 109/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
70/6 = 70 × 15/6 × 15 = 1050/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
1050/90 + 40/90 = 1050 + 40/90 = 1090/90 - 1090/90 simplified gives 109/9
- So, 70/6 + 20/45 = 109/9
In mixed form: 121/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/6+40/45 70/12+20/45 70/6+20/90 70/6+60/45 70/18+20/45 70/30+20/45 70/42+20/45