Add 81/35 and 4/21
1st number: 2 11/35, 2nd number: 4/21
81/35 + 4/21 is 263/105.
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,
81/35 = 81 × 3/35 × 3 = 243/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
4/21 = 4 × 5/21 × 5 = 20/105 - Add the two like fractions:
243/105 + 20/105 = 243 + 20/105 = 263/105 - So, 81/35 + 4/21 = 263/105
In mixed form: 253/105
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