Add 21/6 and 18/72
1st number: 3 3/6, 2nd number: 18/72
216 + 1872 is 154.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
216 = 21 × 126 × 12 = 25272 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
1872 = 18 × 172 × 1 = 1872 - Add the two like fractions:
25272 + 1872 = 252 + 1872 = 27072 - 270/72 simplified gives 154
- So, 21/6 + 18/72 = 15/4
In mixed form: 334
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