Add 21/75 and 28/80
21/75 + 28/80 is 63/100.
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,
28/80 = 28 × 15/80 × 15 = 420/1200 - Add the two like fractions:
336/1200 + 420/1200 = 336 + 420/1200 = 756/1200 - 756/1200 simplified gives 63/100
- So, 21/75 + 28/80 = 63/100
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