Add 45/60 and 21/84
45/60 + 21/84 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
45/60 = 45 × 7/60 × 7 = 315/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
21/84 = 21 × 5/84 × 5 = 105/420 - Add the two like fractions:
315/420 + 105/420 = 315 + 105/420 = 420/420 - 420/420 simplified gives 1/1
- So, 45/60 + 21/84 = 1/1
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