Add 28/42 and 7/5, Solve 28/42 + 1 2/5 as a fraction

Add 28/42 and 7/5

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

28/42 + 7/5 is 31/15.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210
Likewise, for the 2nd fraction, since 5 × 42 = 210,
7/5 = 7 × 42/5 × 42 = 294/210
Add the two like fractions:
140/210 + 294/210 = 140 + 294/210 = 434/210
434/210 simplified gives 31/15
So, 28/42 + 7/5 = 31/15
In mixed form: 21/15

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