Add 90/24 and 42/28
1st number: 3 18/24, 2nd number: 1 14/28
90/24 + 42/28 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 28 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
90/24 = 90 × 7/24 × 7 = 630/168 - Likewise, for the 2nd fraction, since 28 × 6 = 168,
42/28 = 42 × 6/28 × 6 = 252/168 - Add the two like fractions:
630/168 + 252/168 = 630 + 252/168 = 882/168 - 882/168 simplified gives 21/4
- So, 90/24 + 42/28 = 21/4
In mixed form: 51/4
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