Add 75/21 and 63/30
1st number: 3 12/21, 2nd number: 2 3/30
75/21 + 63/30 is 397/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
75/21 = 75 × 10/21 × 10 = 750/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
63/30 = 63 × 7/30 × 7 = 441/210 - Add the two like fractions:
750/210 + 441/210 = 750 + 441/210 = 1191/210 - 1191/210 simplified gives 397/70
- So, 75/21 + 63/30 = 397/70
In mixed form: 547/70
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