Add 21/50 and 18/84
21/50 + 18/84 is 111/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 50 × 42 = 2100,
21/50 = 21 × 42/50 × 42 = 882/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
18/84 = 18 × 25/84 × 25 = 450/2100 - Add the two like fractions:
882/2100 + 450/2100 = 882 + 450/2100 = 1332/2100 - 1332/2100 simplified gives 111/175
- So, 21/50 + 18/84 = 111/175
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