Add 28/70 and 90/36, Solve 28/70 + 2 18/36 as a fraction

Add 28/70 and 90/36

1^st number: 28/70, 2^nd number: 2 18/36

28/70 + 90/36 is 29/10.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 70 × 18 = 1260,
28/70 = 28 × 18/70 × 18 = 504/1260
Likewise, for the 2nd fraction, since 36 × 35 = 1260,
90/36 = 90 × 35/36 × 35 = 3150/1260
Add the two like fractions:
504/1260 + 3150/1260 = 504 + 3150/1260 = 3654/1260
3654/1260 simplified gives 29/10
So, 28/70 + 90/36 = 29/10
In mixed form: 29/10

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