Add 70/18 and 75/20
1st number: 3 16/18, 2nd number: 3 15/20
70/18 + 75/20 is 275/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
70/18 = 70 × 10/18 × 10 = 700/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
75/20 = 75 × 9/20 × 9 = 675/180 - Add the two like fractions:
700/180 + 675/180 = 700 + 675/180 = 1375/180 - 1375/180 simplified gives 275/36
- So, 70/18 + 75/20 = 275/36
In mixed form: 723/36
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