Add 45/28 and 72/63
1st number: 1 17/28, 2nd number: 1 9/63
45/28 + 72/63 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Add the two like fractions:
405/252 + 288/252 = 405 + 288/252 = 693/252 - 693/252 simplified gives 11/4
- So, 45/28 + 72/63 = 11/4
In mixed form: 23/4
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