Add 21/54 and 36/72
21/54 + 36/72 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 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 72 × 3 = 216,
36/72 = 36 × 3/72 × 3 = 108/216 - Add the two like fractions:
84/216 + 108/216 = 84 + 108/216 = 192/216 - 192/216 simplified gives 8/9
- So, 21/54 + 36/72 = 8/9
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