Add 90/84 and 84/8
1st number: 1 6/84, 2nd number: 10 4/8
90/84 + 84/8 is 81/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
90/84 = 90 × 2/84 × 2 = 180/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
84/8 = 84 × 21/8 × 21 = 1764/168 - Add the two like fractions:
180/168 + 1764/168 = 180 + 1764/168 = 1944/168 - 1944/168 simplified gives 81/7
- So, 90/84 + 84/8 = 81/7
In mixed form: 114/7
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