Add 70/45 and 75/63, Solve 1 25/45 + 1 12/63 as a fraction

Add 70/45 and 75/63

1^st number: 1 25/45, 2^nd number: 1 12/63

70/45 + 75/63 is 173/63.

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

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 45 × 7 = 315,
70/45 = 70 × 7/45 × 7 = 490/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
75/63 = 75 × 5/63 × 5 = 375/315
Add the two like fractions:
490/315 + 375/315 = 490 + 375/315 = 865/315
865/315 simplified gives 173/63
So, 70/45 + 75/63 = 173/63
In mixed form: 247/63

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