Add 50/70 and 63/90, Solve 50/70 + 63/90 as a fraction

Add 50/70 and 63/90

50/70 + 63/90 is 99/70.

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,
50/70 = 50 × 9/70 × 9 = 450/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
63/90 = 63 × 7/90 × 7 = 441/630
Add the two like fractions:
450/630 + 441/630 = 450 + 441/630 = 891/630
891/630 simplified gives 99/70
So, 50/70 + 63/90 = 99/70
In mixed form: 129/70

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