Add 28/18 and 40/72
1st number: 1 10/18, 2nd number: 40/72
28/18 + 40/72 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
28/18 = 28 × 4/18 × 4 = 112/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
40/72 = 40 × 1/72 × 1 = 40/72 - Add the two like fractions:
112/72 + 40/72 = 112 + 40/72 = 152/72 - 152/72 simplified gives 19/9
- So, 28/18 + 40/72 = 19/9
In mixed form: 21/9
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