Add 63/18 and 54/15
1st number: 3 9/18, 2nd number: 3 9/15
63/18 + 54/15 is 71/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
63/18 = 63 × 5/18 × 5 = 315/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
54/15 = 54 × 6/15 × 6 = 324/90 - Add the two like fractions:
315/90 + 324/90 = 315 + 324/90 = 639/90 - 639/90 simplified gives 71/10
- So, 63/18 + 54/15 = 71/10
In mixed form: 71/10
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