Add 21/90 and 98/40
1st number: 21/90, 2nd number: 2 18/40
21/90 + 98/40 is 161/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 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 40 × 9 = 360,
98/40 = 98 × 9/40 × 9 = 882/360 - Add the two like fractions:
84/360 + 882/360 = 84 + 882/360 = 966/360 - 966/360 simplified gives 161/60
- So, 21/90 + 98/40 = 161/60
In mixed form: 241/60
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