Add 42/2 and 18/40
1st number: 21 0/2, 2nd number: 18/40
42/2 + 18/40 is 429/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
42/2 = 42 × 20/2 × 20 = 840/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Add the two like fractions:
840/40 + 18/40 = 840 + 18/40 = 858/40 - 858/40 simplified gives 429/20
- So, 42/2 + 18/40 = 429/20
In mixed form: 219/20
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