Add 90/28 and 12/5
1st number: 3 6/28, 2nd number: 2 2/5
90/28 + 12/5 is 393/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
12/5 = 12 × 28/5 × 28 = 336/140 - Add the two like fractions:
450/140 + 336/140 = 450 + 336/140 = 786/140 - 786/140 simplified gives 393/70
- So, 90/28 + 12/5 = 393/70
In mixed form: 543/70
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