Add 45/21 and 28/4
1st number: 2 3/21, 2nd number: 7 0/4
45/21 + 28/4 is 64/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
45/21 = 45 × 4/21 × 4 = 180/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
28/4 = 28 × 21/4 × 21 = 588/84 - Add the two like fractions:
180/84 + 588/84 = 180 + 588/84 = 768/84 - 768/84 simplified gives 64/7
- So, 45/21 + 28/4 = 64/7
In mixed form: 91/7
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