Add 1/20 and 2/45
1/20 + 2/45 is 17/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
2/45 = 2 × 4/45 × 4 = 8/180 - Add the two like fractions:
9/180 + 8/180 = 9 + 8/180 = 17/180 - So, 1/20 + 2/45 = 17/180
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