Add 81/72 and 42/54
1st number: 1 9/72, 2nd number: 42/54
81/72 + 42/54 is 137/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
81/72 = 81 × 3/72 × 3 = 243/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
42/54 = 42 × 4/54 × 4 = 168/216 - Add the two like fractions:
243/216 + 168/216 = 243 + 168/216 = 411/216 - 411/216 simplified gives 137/72
- So, 81/72 + 42/54 = 137/72
In mixed form: 165/72
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