Add 30/8 and 27/18
1st number: 3 6/8, 2nd number: 1 9/18
30/8 + 27/18 is 21/4.
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,
30/8 = 30 × 9/8 × 9 = 270/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
27/18 = 27 × 4/18 × 4 = 108/72 - Add the two like fractions:
270/72 + 108/72 = 270 + 108/72 = 378/72 - 378/72 simplified gives 21/4
- So, 30/8 + 27/18 = 21/4
In mixed form: 51/4
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