Add 20/42 and 4/8
20/42 + 4/8 is 41/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
20/42 = 20 × 4/42 × 4 = 80/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
4/8 = 4 × 21/8 × 21 = 84/168 - Add the two like fractions:
80/168 + 84/168 = 80 + 84/168 = 164/168 - 164/168 simplified gives 41/42
- So, 20/42 + 4/8 = 41/42
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