Add 42/16 and 18/45
1st number: 2 10/16, 2nd number: 18/45
42/16 + 18/45 is 121/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
42/16 = 42 × 45/16 × 45 = 1890/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
18/45 = 18 × 16/45 × 16 = 288/720 - Add the two like fractions:
1890/720 + 288/720 = 1890 + 288/720 = 2178/720 - 2178/720 simplified gives 121/40
- So, 42/16 + 18/45 = 121/40
In mixed form: 31/40
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