Add 70/90 and 56/42, Solve 70/90 + 1 14/42 as a fraction

Add 70/90 and 56/42

1^st number: 70/90, 2^nd number: 1 14/42

70/90 + 56/42 is 19/9.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630
Likewise, for the 2nd fraction, since 42 × 15 = 630,
56/42 = 56 × 15/42 × 15 = 840/630
Add the two like fractions:
490/630 + 840/630 = 490 + 840/630 = 1330/630
1330/630 simplified gives 19/9
So, 70/90 + 56/42 = 19/9
In mixed form: 21/9

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