Add 42/50 and 21/40
42/50 + 21/40 is 273/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
42/50 = 42 × 4/50 × 4 = 168/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
21/40 = 21 × 5/40 × 5 = 105/200 - Add the two like fractions:
168/200 + 105/200 = 168 + 105/200 = 273/200 - So, 42/50 + 21/40 = 273/200
In mixed form: 173/200
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