Add 7/45 and 14/20
7/45 + 14/20 is 77/90.
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,
7/45 = 7 × 4/45 × 4 = 28/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
14/20 = 14 × 9/20 × 9 = 126/180 - Add the two like fractions:
28/180 + 126/180 = 28 + 126/180 = 154/180 - 154/180 simplified gives 77/90
- So, 7/45 + 14/20 = 77/90
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