Add 18/4 and 21/72
1st number: 4 2/4, 2nd number: 21/72
18/4 + 21/72 is 115/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
18/4 = 18 × 18/4 × 18 = 324/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
324/72 + 21/72 = 324 + 21/72 = 345/72 - 345/72 simplified gives 115/24
- So, 18/4 + 21/72 = 115/24
In mixed form: 419/24
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