Add 90/28 and 3/72
1st number: 3 6/28, 2nd number: 3/72
90/28 + 3/72 is 547/168.
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,
3/72 = 3 × 7/72 × 7 = 21/504 - Add the two like fractions:
1620/504 + 21/504 = 1620 + 21/504 = 1641/504 - 1641/504 simplified gives 547/168
- So, 90/28 + 3/72 = 547/168
In mixed form: 343/168
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