Add 20/40 and 42/16
1st number: 20/40, 2nd number: 2 10/16
20/40 + 42/16 is 25/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
20/40 = 20 × 2/40 × 2 = 40/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Add the two like fractions:
40/80 + 210/80 = 40 + 210/80 = 250/80 - 250/80 simplified gives 25/8
- So, 20/40 + 42/16 = 25/8
In mixed form: 31/8
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