Add 12/8 and 20/18
1st number: 1 4/8, 2nd number: 1 2/18
12/8 + 20/18 is 47/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
12/8 = 12 × 9/8 × 9 = 108/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
20/18 = 20 × 4/18 × 4 = 80/72 - Add the two like fractions:
108/72 + 80/72 = 108 + 80/72 = 188/72 - 188/72 simplified gives 47/18
- So, 12/8 + 20/18 = 47/18
In mixed form: 211/18
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