Add 3/40 and 42/18
1st number: 3/40, 2nd number: 2 6/18
3/40 + 42/18 is 289/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
3/40 = 3 × 9/40 × 9 = 27/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
42/18 = 42 × 20/18 × 20 = 840/360 - Add the two like fractions:
27/360 + 840/360 = 27 + 840/360 = 867/360 - 867/360 simplified gives 289/120
- So, 3/40 + 42/18 = 289/120
In mixed form: 249/120
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