Add 42/48 and 20/18
1st number: 42/48, 2nd number: 1 2/18
42/48 + 20/18 is 143/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
42/48 = 42 × 3/48 × 3 = 126/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
20/18 = 20 × 8/18 × 8 = 160/144 - Add the two like fractions:
126/144 + 160/144 = 126 + 160/144 = 286/144 - 286/144 simplified gives 143/72
- So, 42/48 + 20/18 = 143/72
In mixed form: 171/72
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