Add 81/84 and 54/35
1st number: 81/84, 2nd number: 1 19/35
81/84 + 54/35 is 351/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
81/84 = 81 × 5/84 × 5 = 405/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
54/35 = 54 × 12/35 × 12 = 648/420 - Add the two like fractions:
405/420 + 648/420 = 405 + 648/420 = 1053/420 - 1053/420 simplified gives 351/140
- So, 81/84 + 54/35 = 351/140
In mixed form: 271/140
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