Add 70/63 and 80/45, Solve 1 7/63 + 1 35/45 as a fraction

Add 70/63 and 80/45

1^st number: 1 7/63, 2^nd number: 1 35/45

70/63 + 80/45 is 26/9.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 63 × 5 = 315,
70/63 = 70 × 5/63 × 5 = 350/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
80/45 = 80 × 7/45 × 7 = 560/315
Add the two like fractions:
350/315 + 560/315 = 350 + 560/315 = 910/315
910/315 simplified gives 26/9
So, 70/63 + 80/45 = 26/9
In mixed form: 28/9

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