Add 7/81 and 42/4
1st number: 7/81, 2nd number: 10 2/4
7/81 + 42/4 is 1715/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
42/4 = 42 × 81/4 × 81 = 3402/324 - Add the two like fractions:
28/324 + 3402/324 = 28 + 3402/324 = 3430/324 - 3430/324 simplified gives 1715/162
- So, 7/81 + 42/4 = 1715/162
In mixed form: 1095/162
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