Add 18/15 and 63/16
1st number: 1 3/15, 2nd number: 3 15/16
18/15 + 63/16 is 411/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
18/15 = 18 × 16/15 × 16 = 288/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
63/16 = 63 × 15/16 × 15 = 945/240 - Add the two like fractions:
288/240 + 945/240 = 288 + 945/240 = 1233/240 - 1233/240 simplified gives 411/80
- So, 18/15 + 63/16 = 411/80
In mixed form: 511/80
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