Add 72/16 and 21/18
1st number: 4 8/16, 2nd number: 1 3/18
72/16 + 21/18 is 17/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
72/16 = 72 × 9/16 × 9 = 648/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
21/18 = 21 × 8/18 × 8 = 168/144 - Add the two like fractions:
648/144 + 168/144 = 648 + 168/144 = 816/144 - 816/144 simplified gives 17/3
- So, 72/16 + 21/18 = 17/3
In mixed form: 52/3
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