Add 84/70 and 54/90, Solve 1 14/70 + 54/90 as a fraction

Add 84/70 and 54/90

1^st number: 1 14/70, 2^nd number: 54/90

84/70 + 54/90 is 9/5.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
54/90 = 54 × 7/90 × 7 = 378/630
Add the two like fractions:
756/630 + 378/630 = 756 + 378/630 = 1134/630
1134/630 simplified gives 9/5
So, 84/70 + 54/90 = 9/5
In mixed form: 14/5

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