Add 28/7 and 84/40, Solve 4 0/7 + 2 4/40 as a fraction

Add 28/7 and 84/40

1^st number: 4 0/7, 2^nd number: 2 4/40

28/7 + 84/40 is 61/10.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 7 × 40 = 280,
28/7 = 28 × 40/7 × 40 = 1120/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280
Add the two like fractions:
1120/280 + 588/280 = 1120 + 588/280 = 1708/280
1708/280 simplified gives 61/10
So, 28/7 + 84/40 = 61/10
In mixed form: 61/10

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