1. 1 3/4 + 2 5/9
= 7/4 + 23/9
= 63/36 + 92/36
= 155/36
= 4 11/36
2. 7 1/4 + 3 4/9
= 29/4 + 31/9
= 261/36 + 124/36
= 385/36
= 10 25/36
3. soalnya kurang jelas kak, maaf
4. 7 3/4 + 3 7/8 + 5 1/6
= 31/4 + 31/8 + 31/6
= 186/24 + 93/24 + 124/24
= 403/24
= 16 19/24
Cara dan jawaban terlampir
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1. 1 3/4 + 2 5/9
= 7/4 + 23/9
= 63/36 + 92/36
= 155/36
= 4 11/36
2. 7 1/4 + 3 4/9
= 29/4 + 31/9
= 261/36 + 124/36
= 385/36
= 10 25/36
3. soalnya kurang jelas kak, maaf
4. 7 3/4 + 3 7/8 + 5 1/6
= 31/4 + 31/8 + 31/6
= 186/24 + 93/24 + 124/24
= 403/24
= 16 19/24
Cara dan jawaban terlampir