Add 21/12 and 2/40, Solve 1 9/12 + 2/40 as a fraction

Add 21/12 and 2/40

1^st number: 1 9/12, 2^nd number: 2/40

21/12 + 2/40 is 9/5.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
21/12 = 21 × 10/12 × 10 = 210/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
2/40 = 2 × 3/40 × 3 = 6/120
Add the two like fractions:
210/120 + 6/120 = 210 + 6/120 = 216/120
216/120 simplified gives 9/5
So, 21/12 + 2/40 = 9/5
In mixed form: 14/5

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