Add 28/36 and 70/45
1st number: 28/36, 2nd number: 1 25/45
28/36 + 70/45 is 7/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
28/36 = 28 × 5/36 × 5 = 140/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
70/45 = 70 × 4/45 × 4 = 280/180 - Add the two like fractions:
140/180 + 280/180 = 140 + 280/180 = 420/180 - 420/180 simplified gives 7/3
- So, 28/36 + 70/45 = 7/3
In mixed form: 21/3
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