Add 4/45 and 1/20
4/45 + 1/20 is 5/36.
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,
4/45 = 4 × 4/45 × 4 = 16/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Add the two like fractions:
16/180 + 9/180 = 16 + 9/180 = 25/180 - 25/180 simplified gives 5/36
- So, 4/45 + 1/20 = 5/36
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