Add 9/90 and 72/70, Solve 9/90 + 1 2/70 as a fraction

Add 9/90 and 72/70

1^st number: 9/90, 2^nd number: 1 2/70

9/90 + 72/70 is 79/70.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
9/90 = 9 × 7/90 × 7 = 63/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630
Add the two like fractions:
63/630 + 648/630 = 63 + 648/630 = 711/630
711/630 simplified gives 79/70
So, 9/90 + 72/70 = 79/70
In mixed form: 19/70

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