Add 12/40 and 20/18
1st number: 12/40, 2nd number: 1 2/18
12/40 + 20/18 is 127/90.
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,
12/40 = 12 × 9/40 × 9 = 108/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
20/18 = 20 × 20/18 × 20 = 400/360 - Add the two like fractions:
108/360 + 400/360 = 108 + 400/360 = 508/360 - 508/360 simplified gives 127/90
- So, 12/40 + 20/18 = 127/90
In mixed form: 137/90
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