Add 28/80 and 42/7, Solve 28/80 + 6 0/7 as a fraction

Add 28/80 and 42/7

1^st number: 28/80, 2^nd number: 6 0/7

28/80 + 42/7 is 127/20.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
28/80 = 28 × 7/80 × 7 = 196/560
Likewise, for the 2nd fraction, since 7 × 80 = 560,
42/7 = 42 × 80/7 × 80 = 3360/560
Add the two like fractions:
196/560 + 3360/560 = 196 + 3360/560 = 3556/560
3556/560 simplified gives 127/20
So, 28/80 + 42/7 = 127/20
In mixed form: 67/20

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