Add 21/54 and 3/8
21/54 + 3/8 is 55/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
21/54 = 21 × 4/54 × 4 = 84/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
3/8 = 3 × 27/8 × 27 = 81/216 - Add the two like fractions:
84/216 + 81/216 = 84 + 81/216 = 165/216 - 165/216 simplified gives 55/72
- So, 21/54 + 3/8 = 55/72
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