Add 81/70 and 45/9, Solve 1 11/70 + 5 0/9 as a fraction

Add 81/70 and 45/9

1^st number: 1 11/70, 2^nd number: 5 0/9

81/70 + 45/9 is 431/70.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
45/9 = 45 × 70/9 × 70 = 3150/630
Add the two like fractions:
729/630 + 3150/630 = 729 + 3150/630 = 3879/630
3879/630 simplified gives 431/70
So, 81/70 + 45/9 = 431/70
In mixed form: 611/70

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