Add 18/21 and 45/16
1st number: 18/21, 2nd number: 2 13/16
18/21 + 45/16 is 411/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
18/21 = 18 × 16/21 × 16 = 288/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
45/16 = 45 × 21/16 × 21 = 945/336 - Add the two like fractions:
288/336 + 945/336 = 288 + 945/336 = 1233/336 - 1233/336 simplified gives 411/112
- So, 18/21 + 45/16 = 411/112
In mixed form: 375/112
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