Add 84/90 and 72/14
1st number: 84/90, 2nd number: 5 2/14
84/90 + 72/14 is 638/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
84/90 = 84 × 7/90 × 7 = 588/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
72/14 = 72 × 45/14 × 45 = 3240/630 - Add the two like fractions:
588/630 + 3240/630 = 588 + 3240/630 = 3828/630 - 3828/630 simplified gives 638/105
- So, 84/90 + 72/14 = 638/105
In mixed form: 68/105
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