Add 72/15 and 98/70
1st number: 4 12/15, 2nd number: 1 28/70
72/15 + 98/70 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
72/15 = 72 × 14/15 × 14 = 1008/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
98/70 = 98 × 3/70 × 3 = 294/210 - Add the two like fractions:
1008/210 + 294/210 = 1008 + 294/210 = 1302/210 - 1302/210 simplified gives 31/5
- So, 72/15 + 98/70 = 31/5
In mixed form: 61/5
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