Add 21/72 and 42/50
21/72 + 42/50 is 679/600.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
21/72 = 21 × 25/72 × 25 = 525/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
42/50 = 42 × 36/50 × 36 = 1512/1800 - Add the two like fractions:
525/1800 + 1512/1800 = 525 + 1512/1800 = 2037/1800 - 2037/1800 simplified gives 679/600
- So, 21/72 + 42/50 = 679/600
In mixed form: 179/600
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