Add 7/45 and 5/18
7/45 + 5/18 is 13/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
7/45 = 7 × 2/45 × 2 = 14/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
5/18 = 5 × 5/18 × 5 = 25/90 - Add the two like fractions:
14/90 + 25/90 = 14 + 25/90 = 39/90 - 39/90 simplified gives 13/30
- So, 7/45 + 5/18 = 13/30
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