Add 21/8 and 18/54
1st number: 2 5/8, 2nd number: 18/54
21/8 + 18/54 is 71/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
21/8 = 21 × 27/8 × 27 = 567/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
18/54 = 18 × 4/54 × 4 = 72/216 - Add the two like fractions:
567/216 + 72/216 = 567 + 72/216 = 639/216 - 639/216 simplified gives 71/24
- So, 21/8 + 18/54 = 71/24
In mixed form: 223/24
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