Add 45/72 and 70/28
1st number: 45/72, 2nd number: 2 14/28
45/72 + 70/28 is 25/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
45/72 = 45 × 7/72 × 7 = 315/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
70/28 = 70 × 18/28 × 18 = 1260/504 - Add the two like fractions:
315/504 + 1260/504 = 315 + 1260/504 = 1575/504 - 1575/504 simplified gives 25/8
- So, 45/72 + 70/28 = 25/8
In mixed form: 31/8
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