Add 15/63 and 90/15
1st number: 15/63, 2nd number: 6 0/15
15/63 + 90/15 is 131/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
90/15 = 90 × 21/15 × 21 = 1890/315 - Add the two like fractions:
75/315 + 1890/315 = 75 + 1890/315 = 1965/315 - 1965/315 simplified gives 131/21
- So, 15/63 + 90/15 = 131/21
In mixed form: 65/21
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