Add 18/35 and 45/21
1st number: 18/35, 2nd number: 2 3/21
18/35 + 45/21 is 93/35.
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,
18/35 = 18 × 3/35 × 3 = 54/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
45/21 = 45 × 5/21 × 5 = 225/105 - Add the two like fractions:
54/105 + 225/105 = 54 + 225/105 = 279/105 - 279/105 simplified gives 93/35
- So, 18/35 + 45/21 = 93/35
In mixed form: 223/35
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