"They each used 150 beads to make bracelets."
ms loh used → 150 beads mrs tay used → 150 beads
"Ms Loh had used 3/5 of her beads while"
3p → 150 1p → 150 ÷ 3 = 50 5p (ms loh total) → 5 x 50 = 250
"Mrs Tay had used 1/3 of her beads for the bracelets."
1u → 150 3u (mrs tay total) → 150 x 3 = 450
total shared → 250 + 450 = 700