Add 20/16 and 42/9
1st number: 1 4/16, 2nd number: 4 6/9
20/16 + 42/9 is 71/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
20/16 = 20 × 9/16 × 9 = 180/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
42/9 = 42 × 16/9 × 16 = 672/144 - Add the two like fractions:
180/144 + 672/144 = 180 + 672/144 = 852/144 - 852/144 simplified gives 71/12
- So, 20/16 + 42/9 = 71/12
In mixed form: 511/12
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