Add 80/42 and 56/35, Solve 1 38/42 + 1 21/35 as a fraction

Add 80/42 and 56/35

1^st number: 1 38/42, 2^nd number: 1 21/35

80/42 + 56/35 is 368/105.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
80/42 = 80 × 5/42 × 5 = 400/210
Likewise, for the 2nd fraction, since 35 × 6 = 210,
56/35 = 56 × 6/35 × 6 = 336/210
Add the two like fractions:
400/210 + 336/210 = 400 + 336/210 = 736/210
736/210 simplified gives 368/105
So, 80/42 + 56/35 = 368/105
In mixed form: 353/105

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