Answer:
479/315
Step-by-step explanation:
1.) Add: 7/
9 + 1
/7 = 7 · 7
/9 · 7 + 1 · 9
/7 · 9 = 49
/63 + 9
/63 = 49 + 9
/63 = 58
/63
The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 7) = 63. The fraction result cannot be further simplified by cancelling.
In words - seven ninths plus one seventh = fifty-eight sixty-thirds.
2.) Add: the result of step
No. 1 + 3
/5 = 58
/63 + 3
/5 = 58 · 5
/63 · 5 + 3·63
/5·63 = 290
/315 + 189
/315
= 290 + 189
/315 = 479
/315
The common denominator you can calculate as the least common multiple of the both denominators - LCM(63, 5) = 315. The fraction result cannot be further simplified by cancelling.
In words - fifty-eight sixty-thirds plus three fifths = four hundred seventy-nine three-hundred fifteenths.
