Add 42/20 and 40/42
1st number: 2 2/20, 2nd number: 40/42
42/20 + 40/42 is 641/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
42/20 = 42 × 21/20 × 21 = 882/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
40/42 = 40 × 10/42 × 10 = 400/420 - Add the two like fractions:
882/420 + 400/420 = 882 + 400/420 = 1282/420 - 1282/420 simplified gives 641/210
- So, 42/20 + 40/42 = 641/210
In mixed form: 311/210
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