Add 1/45 and 18/20
1/45 + 18/20 is 83/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
1/45 = 1 × 4/45 × 4 = 4/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Add the two like fractions:
4/180 + 162/180 = 4 + 162/180 = 166/180 - 166/180 simplified gives 83/90
- So, 1/45 + 18/20 = 83/90
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