Add 70/20 and 28/9
1st number: 3 10/20, 2nd number: 3 1/9
70/20 + 28/9 is 119/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
28/9 = 28 × 20/9 × 20 = 560/180 - Add the two like fractions:
630/180 + 560/180 = 630 + 560/180 = 1190/180 - 1190/180 simplified gives 119/18
- So, 70/20 + 28/9 = 119/18
In mixed form: 611/18
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