Add 21/54 and 7/72
21/54 + 7/72 is 35/72.
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,
7/72 = 7 × 3/72 × 3 = 21/216 - Add the two like fractions:
84/216 + 21/216 = 84 + 21/216 = 105/216 - 105/216 simplified gives 35/72
- So, 21/54 + 7/72 = 35/72
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