Add 45/75 and 21/54
45/75 + 21/54 is 89/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 75 × 18 = 1350,
45/75 = 45 × 18/75 × 18 = 810/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
21/54 = 21 × 25/54 × 25 = 525/1350 - Add the two like fractions:
810/1350 + 525/1350 = 810 + 525/1350 = 1335/1350 - 1335/1350 simplified gives 89/90
- So, 45/75 + 21/54 = 89/90
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