Add 18/3 and 42/40, Solve 6 0/3 + 1 2/40 as a fraction

Add 18/3 and 42/40

1^st number: 6 0/3, 2^nd number: 1 2/40

18/3 + 42/40 is 141/20.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 3 × 40 = 120,
18/3 = 18 × 40/3 × 40 = 720/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120
Add the two like fractions:
720/120 + 126/120 = 720 + 126/120 = 846/120
846/120 simplified gives 141/20
So, 18/3 + 42/40 = 141/20
In mixed form: 71/20

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