Add 42/5 and 70/42, Solve 8 2/5 + 1 28/42 as a fraction

Add 42/5 and 70/42

1^st number: 8 2/5, 2^nd number: 1 28/42

42/5 + 70/42 is 151/15.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
42/5 = 42 × 42/5 × 42 = 1764/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210
Add the two like fractions:
1764/210 + 350/210 = 1764 + 350/210 = 2114/210
2114/210 simplified gives 151/15
So, 42/5 + 70/42 = 151/15
In mixed form: 101/15

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