Add 21/90 and 90/8
1st number: 21/90, 2nd number: 11 2/8
21/90 + 90/8 is 689/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
21/90 = 21 × 4/90 × 4 = 84/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
90/8 = 90 × 45/8 × 45 = 4050/360 - Add the two like fractions:
84/360 + 4050/360 = 84 + 4050/360 = 4134/360 - 4134/360 simplified gives 689/60
- So, 21/90 + 90/8 = 689/60
In mixed form: 1129/60
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