Add 15/14 and 90/21
1st number: 1 1/14, 2nd number: 4 6/21
15/14 + 90/21 is 75/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
15/14 = 15 × 3/14 × 3 = 45/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
90/21 = 90 × 2/21 × 2 = 180/42 - Add the two like fractions:
45/42 + 180/42 = 45 + 180/42 = 225/42 - 225/42 simplified gives 75/14
- So, 15/14 + 90/21 = 75/14
In mixed form: 55/14
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