Add 20/42 and 18/48
20/42 + 18/48 is 143/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
20/42 = 20 × 8/42 × 8 = 160/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
18/48 = 18 × 7/48 × 7 = 126/336 - Add the two like fractions:
160/336 + 126/336 = 160 + 126/336 = 286/336 - 286/336 simplified gives 143/168
- So, 20/42 + 18/48 = 143/168
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