Add 20/54 and 21/72
20/54 + 21/72 is 143/216.
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,
20/54 = 20 × 4/54 × 4 = 80/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
21/72 = 21 × 3/72 × 3 = 63/216 - Add the two like fractions:
80/216 + 63/216 = 80 + 63/216 = 143/216 - So, 20/54 + 21/72 = 143/216
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