Add 5/70 and 90/27, Solve 5/70 + 3 9/27 as a fraction

Add 5/70 and 90/27

1^st number: 5/70, 2^nd number: 3 9/27

5/70 + 90/27 is 143/42.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890

Next, find the equivalent fraction of both fractional numbers with denominator 1890
For the 1st fraction, since 70 × 27 = 1890,
5/70 = 5 × 27/70 × 27 = 135/1890
Likewise, for the 2nd fraction, since 27 × 70 = 1890,
90/27 = 90 × 70/27 × 70 = 6300/1890
Add the two like fractions:
135/1890 + 6300/1890 = 135 + 6300/1890 = 6435/1890
6435/1890 simplified gives 143/42
So, 5/70 + 90/27 = 143/42
In mixed form: 317/42

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