Add 20/72 and 90/9
1st number: 20/72, 2nd number: 10 0/9
20/72 + 90/9 is 185/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
90/9 = 90 × 8/9 × 8 = 720/72 - Add the two like fractions:
20/72 + 720/72 = 20 + 720/72 = 740/72 - 740/72 simplified gives 185/18
- So, 20/72 + 90/9 = 185/18
In mixed form: 105/18
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