Add 21/90 and 35/8
1st number: 21/90, 2nd number: 4 3/8
21/90 + 35/8 is 553/120.
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,
35/8 = 35 × 45/8 × 45 = 1575/360 - Add the two like fractions:
84/360 + 1575/360 = 84 + 1575/360 = 1659/360 - 1659/360 simplified gives 553/120
- So, 21/90 + 35/8 = 553/120
In mixed form: 473/120
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