Add 98/21 and 63/40
1st number: 4 14/21, 2nd number: 1 23/40
98/21 + 63/40 is 749/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 21 × 40 = 840,
98/21 = 98 × 40/21 × 40 = 3920/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
63/40 = 63 × 21/40 × 21 = 1323/840 - Add the two like fractions:
3920/840 + 1323/840 = 3920 + 1323/840 = 5243/840 - 5243/840 simplified gives 749/120
- So, 98/21 + 63/40 = 749/120
In mixed form: 629/120
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