Add 21/75 and 40/80
21/75 + 40/80 is 39/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
21/75 = 21 × 16/75 × 16 = 336/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
40/80 = 40 × 15/80 × 15 = 600/1200 - Add the two like fractions:
336/1200 + 600/1200 = 336 + 600/1200 = 936/1200 - 936/1200 simplified gives 39/50
- So, 21/75 + 40/80 = 39/50
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