Add 70/9 and 84/20
1st number: 7 7/9, 2nd number: 4 4/20
70/9 + 84/20 is 539/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
70/9 = 70 × 20/9 × 20 = 1400/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
84/20 = 84 × 9/20 × 9 = 756/180 - Add the two like fractions:
1400/180 + 756/180 = 1400 + 756/180 = 2156/180 - 2156/180 simplified gives 539/45
- So, 70/9 + 84/20 = 539/45
In mixed form: 1144/45
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