Add 18/21 and 90/35
1st number: 18/21, 2nd number: 2 20/35
18/21 + 90/35 is 24/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
18/21 = 18 × 5/21 × 5 = 90/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
90/35 = 90 × 3/35 × 3 = 270/105 - Add the two like fractions:
90/105 + 270/105 = 90 + 270/105 = 360/105 - 360/105 simplified gives 24/7
- So, 18/21 + 90/35 = 24/7
In mixed form: 33/7
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