Add 98/90 and 90/72
1st number: 1 8/90, 2nd number: 1 18/72
98/90 + 90/72 is 421/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
98/90 = 98 × 4/90 × 4 = 392/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
392/360 + 450/360 = 392 + 450/360 = 842/360 - 842/360 simplified gives 421/180
- So, 98/90 + 90/72 = 421/180
In mixed form: 261/180
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