Add 63/70 and 70/9, Solve 63/70 + 7 7/9 as a fraction

Add 63/70 and 70/9

1^st number: 63/70, 2^nd number: 7 7/9

63/70 + 70/9 is 781/90.

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,
63/70 = 63 × 9/70 × 9 = 567/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
70/9 = 70 × 70/9 × 70 = 4900/630
Add the two like fractions:
567/630 + 4900/630 = 567 + 4900/630 = 5467/630
5467/630 simplified gives 781/90
So, 63/70 + 70/9 = 781/90
In mixed form: 861/90

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