Add 84/90 and 42/36
1st number: 84/90, 2nd number: 1 6/36
84/90 + 42/36 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
84/90 = 84 × 2/90 × 2 = 168/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Add the two like fractions:
168/180 + 210/180 = 168 + 210/180 = 378/180 - 378/180 simplified gives 21/10
- So, 84/90 + 42/36 = 21/10
In mixed form: 21/10
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