Add 20/42 and 21/3
1st number: 20/42, 2nd number: 7 0/3
20/42 + 21/3 is 157/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
20/42 = 20 × 1/42 × 1 = 20/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
21/3 = 21 × 14/3 × 14 = 294/42 - Add the two like fractions:
20/42 + 294/42 = 20 + 294/42 = 314/42 - 314/42 simplified gives 157/21
- So, 20/42 + 21/3 = 157/21
In mixed form: 710/21
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