Add 28/5 and 72/42, Solve 5 3/5 + 1 30/42 as a fraction

Add 28/5 and 72/42

1^st number: 5 3/5, 2^nd number: 1 30/42

28/5 + 72/42 is 256/35.

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,
28/5 = 28 × 42/5 × 42 = 1176/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210
Add the two like fractions:
1176/210 + 360/210 = 1176 + 360/210 = 1536/210
1536/210 simplified gives 256/35
So, 28/5 + 72/42 = 256/35
In mixed form: 711/35

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