Add 18/40 and 30/49
18/40 + 30/49 is 1041/980.
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,
30/49 = 30 × 40/49 × 40 = 1200/1960 - Add the two like fractions:
882/1960 + 1200/1960 = 882 + 1200/1960 = 2082/1960 - 2082/1960 simplified gives 1041/980
- So, 18/40 + 30/49 = 1041/980
In mixed form: 161/980
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