Add 18/45 and 20/56
18/45 + 20/56 is 53/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
18/45 = 18 × 56/45 × 56 = 1008/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Add the two like fractions:
1008/2520 + 900/2520 = 1008 + 900/2520 = 1908/2520 - 1908/2520 simplified gives 53/70
- So, 18/45 + 20/56 = 53/70
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