Add 21/28 and 9/75
21/28 + 9/75 is 87/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
21/28 = 21 × 75/28 × 75 = 1575/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
9/75 = 9 × 28/75 × 28 = 252/2100 - Add the two like fractions:
1575/2100 + 252/2100 = 1575 + 252/2100 = 1827/2100 - 1827/2100 simplified gives 87/100
- So, 21/28 + 9/75 = 87/100
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