Add 28/16 and 72/90
1st number: 1 12/16, 2nd number: 72/90
28/16 + 72/90 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
28/16 = 28 × 45/16 × 45 = 1260/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
72/90 = 72 × 8/90 × 8 = 576/720 - Add the two like fractions:
1260/720 + 576/720 = 1260 + 576/720 = 1836/720 - 1836/720 simplified gives 51/20
- So, 28/16 + 72/90 = 51/20
In mixed form: 211/20
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