Add 42/16 and 45/72
1st number: 2 10/16, 2nd number: 45/72
42/16 + 45/72 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
42/16 = 42 × 9/16 × 9 = 378/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
45/72 = 45 × 2/72 × 2 = 90/144 - Add the two like fractions:
378/144 + 90/144 = 378 + 90/144 = 468/144 - 468/144 simplified gives 13/4
- So, 42/16 + 45/72 = 13/4
In mixed form: 31/4
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