Add 18/40 and 12/49
18/40 + 12/49 is 681/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
18/40 = 18 × 49/40 × 49 = 882/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
12/49 = 12 × 40/49 × 40 = 480/1960 - Add the two like fractions:
882/1960 + 480/1960 = 882 + 480/1960 = 1362/1960 - 1362/1960 simplified gives 681/980
- So, 18/40 + 12/49 = 681/980
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