Add 90/30 and 28/56
1st number: 3 0/30, 2nd number: 28/56
90/30 + 28/56 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
90/30 = 90 × 28/30 × 28 = 2520/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Add the two like fractions:
2520/840 + 420/840 = 2520 + 420/840 = 2940/840 - 2940/840 simplified gives 7/2
- So, 90/30 + 28/56 = 7/2
In mixed form: 31/2
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