Add 72/5 and 18/21
1st number: 14 2/5, 2nd number: 18/21
72/5 + 18/21 is 534/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
72/5 = 72 × 21/5 × 21 = 1512/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
18/21 = 18 × 5/21 × 5 = 90/105 - Add the two like fractions:
1512/105 + 90/105 = 1512 + 90/105 = 1602/105 - 1602/105 simplified gives 534/35
- So, 72/5 + 18/21 = 534/35
In mixed form: 159/35
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