Add 21/75 and 20/40
21/75 + 20/40 is 39/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
21/75 = 21 × 8/75 × 8 = 168/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
20/40 = 20 × 15/40 × 15 = 300/600 - Add the two like fractions:
168/600 + 300/600 = 168 + 300/600 = 468/600 - 468/600 simplified gives 39/50
- So, 21/75 + 20/40 = 39/50
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