Add 42/7 and 28/72, Solve 6 0/7 + 28/72 as a fraction

Add 42/7 and 28/72

1^st number: 6 0/7, 2^nd number: 28/72

42/7 + 28/72 is 115/18.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 7 × 72 = 504,
42/7 = 42 × 72/7 × 72 = 3024/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504
Add the two like fractions:
3024/504 + 196/504 = 3024 + 196/504 = 3220/504
3220/504 simplified gives 115/18
So, 42/7 + 28/72 = 115/18
In mixed form: 67/18

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