Add 20/8 and 9/42
1st number: 2 4/8, 2nd number: 9/42
20/8 + 9/42 is 19/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
20/8 = 20 × 21/8 × 21 = 420/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
9/42 = 9 × 4/42 × 4 = 36/168 - Add the two like fractions:
420/168 + 36/168 = 420 + 36/168 = 456/168 - 456/168 simplified gives 19/7
- So, 20/8 + 9/42 = 19/7
In mixed form: 25/7
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