Add 90/15 and 21/14
1st number: 6 0/15, 2nd number: 1 7/14
90/15 + 21/14 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
90/15 = 90 × 14/15 × 14 = 1260/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
21/14 = 21 × 15/14 × 15 = 315/210 - Add the two like fractions:
1260/210 + 315/210 = 1260 + 315/210 = 1575/210 - 1575/210 simplified gives 15/2
- So, 90/15 + 21/14 = 15/2
In mixed form: 71/2
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