Add 72/28 and 40/9
1st number: 2 16/28, 2nd number: 4 4/9
72/28 + 40/9 is 442/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
72/28 = 72 × 9/28 × 9 = 648/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
40/9 = 40 × 28/9 × 28 = 1120/252 - Add the two like fractions:
648/252 + 1120/252 = 648 + 1120/252 = 1768/252 - 1768/252 simplified gives 442/63
- So, 72/28 + 40/9 = 442/63
In mixed form: 71/63
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