Add 90/28 and 15/72
1st number: 3 6/28, 2nd number: 15/72
90/28 + 15/72 is 575/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
90/28 = 90 × 18/28 × 18 = 1620/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Add the two like fractions:
1620/504 + 105/504 = 1620 + 105/504 = 1725/504 - 1725/504 simplified gives 575/168
- So, 90/28 + 15/72 = 575/168
In mixed form: 371/168
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