Add 72/35 and 10/21
1st number: 2 2/35, 2nd number: 10/21
72/35 + 10/21 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
72/35 = 72 × 3/35 × 3 = 216/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
10/21 = 10 × 5/21 × 5 = 50/105 - Add the two like fractions:
216/105 + 50/105 = 216 + 50/105 = 266/105 - 266/105 simplified gives 38/15
- So, 72/35 + 10/21 = 38/15
In mixed form: 28/15
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