Add 98/20 and 80/21
1st number: 4 18/20, 2nd number: 3 17/21
98/20 + 80/21 is 1829/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
98/20 = 98 × 21/20 × 21 = 2058/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
80/21 = 80 × 20/21 × 20 = 1600/420 - Add the two like fractions:
2058/420 + 1600/420 = 2058 + 1600/420 = 3658/420 - 3658/420 simplified gives 1829/210
- So, 98/20 + 80/21 = 1829/210
In mixed form: 8149/210
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